Quiz No. 1- MTH202 Discrete Mathematics Due date Dec 11, 2013 - Virtual University of Pakistan 2021-07-24T05:16:49Z https://vustudents.ning.com/forum/topics/quiz-no-1-mth202-discrete-mathematics-due-date-dec-11-2013?groupUrl=mth202discretemathematics&commentId=3783342%3AComment%3A6606409&xg_source=activity&groupId=3783342%3AGroup%3A59508&feed=yes&xn_auth=no thanks for sharing  tag:vustudents.ning.com,2020-12-16:3783342:Comment:6607359 2020-12-16T16:53:52.756Z + M.Tariq Malik https://vustudents.ning.com/profile/malik12 <p>thanks for sharing </p> <p>thanks for sharing </p> Question # 1 of 10 ( Start ti… tag:vustudents.ning.com,2020-12-16:3783342:Comment:6606409 2020-12-16T12:11:38.604Z Hajjvery BS IT https://vustudents.ning.com/profile/jawairiasajid <p><span>Question # 1 of 10 ( Start time: 12:50:12 PM )     Total Marks: 1</span><br></br><span>Let A = {1,2,3,4} and define the relation R on A by R = {(1,2), (2,3), (3,3), (3,4)}.Then ________</span><br></br><span>Select correct option:</span><br></br><span>    R is reflexive</span><br></br><span>   <strong> R is irreflexiv</strong>e <span style="font-size: 12pt;"><strong>true ans.</strong></span></span><br></br><span>    R is both reflexive and irreflexive</span><br></br><span>    </span>R is neither reflexive nor…</p> <p><span>Question # 1 of 10 ( Start time: 12:50:12 PM )     Total Marks: 1</span><br/><span>Let A = {1,2,3,4} and define the relation R on A by R = {(1,2), (2,3), (3,3), (3,4)}.Then ________</span><br/><span>Select correct option:</span><br/><span>    R is reflexive</span><br/><span>   <strong> R is irreflexiv</strong>e <span style="font-size: 12pt;"><strong>true ans.</strong></span></span><br/><span>    R is both reflexive and irreflexive</span><br/><span>    </span>R is neither reflexive nor irreflexive</p> My Today quiz. Quiz Start Ti… tag:vustudents.ning.com,2013-12-11:3783342:Comment:3786859 2013-12-11T08:06:08.247Z LuCkY https://vustudents.ning.com/profile/SALAM <p>My Today quiz.</p> <p></p> <p>Quiz Start Time: 12:50 PM     <br></br>Time Left     89<br></br>sec(s)     <br></br>Question # 1 of 10 ( Start time: 12:50:12 PM )     Total Marks: 1<br></br>Let A = {1,2,3,4} and define the relation R on A by R = {(1,2), (2,3), (3,3), (3,4)}.Then ________<br></br>Select correct option:<br></br>    R is reflexive<br></br>    R is irreflexive<br></br>    R is both reflexive and irreflexive<br></br>    <strong>R is neither reflexive nor irreflexive</strong><br></br><br></br>Quiz Start Time: 12:50 PM   …</p> <p>My Today quiz.</p> <p></p> <p>Quiz Start Time: 12:50 PM     <br/>Time Left     89<br/>sec(s)     <br/>Question # 1 of 10 ( Start time: 12:50:12 PM )     Total Marks: 1<br/>Let A = {1,2,3,4} and define the relation R on A by R = {(1,2), (2,3), (3,3), (3,4)}.Then ________<br/>Select correct option:<br/>    R is reflexive<br/>    R is irreflexive<br/>    R is both reflexive and irreflexive<br/>    <strong>R is neither reflexive nor irreflexive</strong><br/><br/>Quiz Start Time: 12:50 PM     <br/>Time Left     88<br/>sec(s)     <br/>Question # 2 of 10 ( Start time: 12:51:31 PM )     Total Marks: 1<br/>Let A = {1,2,3} and R be the relation defined on A such that R ={(1,1), (1,2), (2,3), (3,1)}, then R is _______ .<br/>Select correct option:<br/>    <strong>Symmetric</strong><br/>    Antisymmetric<br/><br/>Quiz Start Time: 12:50 PM     <br/>Time Left     89<br/>sec(s)     <br/>Question # 3 of 10 ( Start time: 12:52:52 PM )     Total Marks: 1<br/>Let A = {0, 1, 2} and R = {(0,2), (1,1), (2,0)} be a relation on A. Then which of the following ordered pairs are needed to make it transitive?<br/>Select correct option:<br/>    (2,0) and (0,2)<br/>    (0,0) and (2,2)<br/>    (0,0) and (0,2)<br/>    (2,0) and (2,2)<br/><br/><br/>Quiz Start Time: 12:50 PM     <br/>Time Left     88<br/>sec(s)     <br/>Question # 4 of 10 ( Start time: 12:54:04 PM )     Total Marks: 1<br/>The functions fog and gof are always equal.<br/>Select correct option:<br/>    True<br/>    <strong>False</strong><br/><br/>Quiz Start Time: 12:50 PM     <br/>Time Left     88<br/>sec(s)     <br/>Question # 5 of 10 ( Start time: 12:54:55 PM )     Total Marks: 1<br/>The functions f and g are inverse of each other if and only if their composition gives........<br/>Select correct option:<br/>    constant function<br/>    <strong>identity function</strong><br/>    bijective function<br/>    injective function<br/><br/>BC100401707</p> <p><br/>Quiz Start Time: 12:50 PM     <br/>Time Left     88<br/>sec(s)     <br/>Question # 6 of 10 ( Start time: 12:55:54 PM )     Total Marks: 1<br/>Let A={1,2,3} and B = {2,4}then number of binary relations from A to B are ____________ .<br/>Select correct option:<br/>   <strong> 6</strong><br/>    9<br/>    16<br/>    64<br/><br/>Quiz Start Time: 12:50 PM     <br/>Time Left     88<br/>sec(s)     <br/>Question # 7 of 10 ( Start time: 12:56:43 PM )     Total Marks: 1<br/>Inverse of a surjective function is always a function.<br/>Select correct option:<br/>    True<br/>   <strong> False</strong><br/><br/>Quiz Start Time: 12:50 PM     <br/>Time Left     89<br/>sec(s)     <br/>Question # 8 of 10 ( Start time: 12:57:30 PM )     Total Marks: 1<br/>Let X ={1,2,3,4}and Y = {7,8,9}and let f be function defined from X to Y such that f is onto then which of the following statement about f is true?<br/>Select correct option:<br/>    Co-domain of f must contain 1 element<br/>    Co-domain of f must contain 2 elements<br/>    Co-domain of f must contain 3 elements<br/>    Co-domain of f must contain 4 elements<br/><br/>Quiz Start Time: 12:50 PM     <br/>Time Left     40<br/>sec(s)     <br/>Question # 9 of 10 ( Start time: 12:58:53 PM )     Total Marks: 1<br/>Let A = {0,1} and B = {1}.Let R and S be two binary relations on Cartesian product of A and B such that R={(0,1)} and S ={(1,1)}. Then R intersection S = ________________ .<br/>Select correct option:<br/>    {0,1}<br/>    {1,1}<br/>    {(0,1)}<br/>    empty<br/><br/>Quiz Start Time: 12:50 PM     <br/>Time Left     89<br/>sec(s)     <br/>Question # 10 of 10 ( Start time: 01:00:04 PM )     Total Marks: 1<br/>Let f be a function from X = {2,4,5} to Y = {1,2,4,6} defined as:f = {(2,6), (4,2), (5,1)} Then range of f is _____________ .<br/>Select correct option:<br/>    1,2,6<br/>    2,4,5<br/>    <strong>{1,2,6}</strong><br/>    {2,4,5}<br/><br/></p> Let A = {1,2,3,4} and R = {(1… tag:vustudents.ning.com,2013-12-10:3783342:Comment:3785896 2013-12-10T18:51:15.940Z + M.Tariq Malik https://vustudents.ning.com/profile/malik12 <p>Let A = {1,2,3,4} and R = {(1,2), (2,3), (3,3), (3,4)} be a relation on A. Then which one of the following ordered pair has made R not an irreflexive relation?</p> <p> R is not symmetric iff there are elements a and b in A such that ____________ .</p> <p> </p> <p>Let A={1,2,3} and B = {2,4}then number of binary relations from A to B are ____________ .</p> <p> </p> <p>Let R and S be transitive relations on a set A then __________________</p> <p> </p> <p>Let X = {2,4,5} and Y={1,2,4 }and R be…</p> <p>Let A = {1,2,3,4} and R = {(1,2), (2,3), (3,3), (3,4)} be a relation on A. Then which one of the following ordered pair has made R not an irreflexive relation?</p> <p> R is not symmetric iff there are elements a and b in A such that ____________ .</p> <p> </p> <p>Let A={1,2,3} and B = {2,4}then number of binary relations from A to B are ____________ .</p> <p> </p> <p>Let R and S be transitive relations on a set A then __________________</p> <p> </p> <p>Let X = {2,4,5} and Y={1,2,4 }and R be a relation from X to Y defined by R = {(2,4), (4,1), (a,2)}. For what value of ‘a ‘ the relation R is a function ?</p> <p> </p> <p>Let f be a function from X = {2,4,5} to Y = {1,2,4,6} defined as:f = {(2,6), (4,2), (5,1)} Then range of f is _____________ .</p> <p> Let A = {0,1} and B = {1}.Let R and S be two binary relations on Cartesian product of A and B such that R={(0,1)} and S ={(1,1)}. Then R intersection S = ________________ .</p> <p> Let R be a relation on a set A. If R is symmetric then its compliment is ___________ .</p> <p> Let f(x)=x and g(x)=-x for all x belongs to R,then f+g(x)is.......</p> <p> Let A = {0, 1, 2} and R = {(0,2), (1,1), (2,0)} be a relation on A. Then which of the following ordered pairs are needed to make it transitive?</p> Quiz No. 1  MTH202_Discrete M… tag:vustudents.ning.com,2013-12-10:3783342:Comment:3785455 2013-12-10T17:05:02.744Z + M.Tariq Malik https://vustudents.ning.com/profile/malik12 <div class="description" id="desc_6543099Comment703734"><div class="xg_user_generated"><p><span>Quiz No. 1 </span></p> <p><span>MTH202_Discrete Mathematics…</span></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322803862?profile=original" target="_self"><img class="align-center" src="http://storage.ning.com/topology/rest/1.0/file/get/322803862?profile=original" width="588"></img></a></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322804167?profile=original" target="_self"><img class="align-center" src="http://storage.ning.com/topology/rest/1.0/file/get/322804167?profile=original" width="596"></img></a></p> <p></p> </div> </div> <div class="description" id="desc_6543099Comment703734"><div class="xg_user_generated"><p><span>Quiz No. 1 </span></p> <p><span>MTH202_Discrete Mathematics</span></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322803862?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/322803862?profile=original" width="588" class="align-center"/></a></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322804167?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/322804167?profile=original" width="596" class="align-center"/></a></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322805196?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/322805196?profile=original" width="598" class="align-center"/></a></p> <p></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322807552?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/322807552?profile=original" width="598" class="align-center"/></a></p> <p></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322807518?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/322807518?profile=original" width="595" class="align-center"/></a></p> <p></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322807530?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/322807530?profile=original" width="599" class="align-center"/></a></p> <p></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322807543?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/322807543?profile=original" width="595" class="align-center"/></a></p> <p></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322808330?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/322808330?profile=original" width="595" class="align-center"/></a></p> <p></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322808424?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/322808424?profile=original" width="599" class="align-center"/></a></p> <p></p> <p><a href="http://storage.ning.com/topology/rest/1.0/file/get/322808474?profile=original" target="_self"><img src="http://storage.ning.com/topology/rest/1.0/file/get/322808474?profile=original" width="599"/></a></p> <p></p> </div> </div> Quiz  MTH202_Discrete Mathema… tag:vustudents.ning.com,2013-12-10:3783342:Comment:3785542 2013-12-10T17:04:40.852Z + M.Tariq Malik https://vustudents.ning.com/profile/malik12 <p><span>Quiz </span></p> <p><span>MTH202_Discrete Mathematics</span></p> <ul class="xg_messageList"> <li class="message"><p class="_message">Let X = {1,5,9} and Y = {3,4,7}.Define a function f from X to Y such that f(1) = 7 f(5) = 3 f(9) = 4 then which one of the following statement about ‘f’ is true?</p> </li> <li class="message brief"><p class="_message">f is not one-to-one</p> </li> <li class="message brief"><p class="_message">f is not onto…</p> </li> </ul> <p><span>Quiz </span></p> <p><span>MTH202_Discrete Mathematics</span></p> <ul class="xg_messageList"> <li class="message"><p class="_message">Let X = {1,5,9} and Y = {3,4,7}.Define a function f from X to Y such that f(1) = 7 f(5) = 3 f(9) = 4 then which one of the following statement about ‘f’ is true?</p> </li> <li class="message brief"><p class="_message">f is not one-to-one</p> </li> <li class="message brief"><p class="_message">f is not onto</p> </li> <li class="message brief"><p class="_message">f is both one-to-one and onto</p> </li> <li class="message brief"><span>f is neither one-to-one nor onto</span></li> </ul> <ul class="xg_messageList"> <li class="message"><p class="_message">Let A = {1, 2, 3, 4} and define a relation R on A by R = {(1, 1), (1, 2), (1, 3), (2, 3)}. Then which one of the following is a correct statement about R:</p> </li> <li class="message brief"><p class="_message">R is transitive</p> </li> <li class="message brief"><p class="_message">R is reflexive</p> </li> <li class="message brief"><p class="_message">R is both transitive and reflexive</p> </li> <li class="message brief"><p class="_message">R is neither reflexive nor transitive</p> </li> </ul> <ul class="xg_messageList"> <li class="message"><p class="_message">Let A = {1,2,3,…,50}and B = {2,4,6,8,10}. Then the Cartesian product of A and B has _______elements.</p> </li> <li class="message brief"><p class="_message">5</p> </li> <li class="message brief"><p class="_message">50</p> </li> <li class="message brief"><p class="_message">100</p> </li> <li class="message brief"><p class="_message">250</p> </li> </ul> <ul class="xg_messageList"> <li class="message"><p class="_message">If r is a positive real number,then the value of r in 3.r.r = -27r is ......</p> </li> <li class="message brief"><p class="_message">+9</p> </li> <li class="message brief"><p class="_message">-9</p> </li> <li class="message brief"><p class="_message">0</p> </li> <li>none</li> </ul> <ul class="xg_messageList"> <li class="message"><p class="_message">The relation “divides” on the set of integers is _________________.</p> </li> <li class="message brief"><p class="_message">A symmetric relation</p> </li> <li class="message brief"><p class="_message">An antisymmetric relation</p> </li> <li class="message brief"><p class="_message">Neither symmetric nor antisymmetric</p> </li> <li class="message brief"><p class="_message">Both symmetric and antisymmetric</p> </li> </ul> <ul class="xg_messageList"> <li class="message"><p class="_message">For any set A, the Cartesian product of A and A is known as _______________ .</p> </li> <li class="message brief"><p class="_message">empty</p> </li> <li class="message brief"><p class="_message">universal</p> </li> </ul> <ul class="xg_messageList"> <li class="message"><p class="_message">Let A = {0, 1, 2} and R = {(0,2), (1,1), (2,0)} be a relation on A. Then which of the following ordered pairs are needed to make it transitive?</p> </li> <li class="message brief"><p class="_message">2,0) and (0,2)</p> </li> <li class="message brief"><p class="_message">(0,0) and (2,2)</p> </li> <li class="message brief"><p class="_message">(0,0) and (0,2)</p> </li> <li class="message brief"><p class="_message">(2,0) and (2,2)</p> </li> </ul> <p><span>Let f(x)=2x and g(x)= x+2 Then (f-g)(x)= .....</span></p> <ul class="xg_messageList"> <li class="message"><p class="_message">x+2</p> </li> <li class="message brief"><p class="_message">x</p> </li> <li class="message brief"><p class="_message">2x</p> </li> <li class="message brief"><p class="_message">x-2</p> </li> </ul> <ul class="xg_messageList"> <li class="message brief"><p class="_message">If 1st term of a geometric sequence is 2 and common ratio is 1/2,then 3rd term of sequence is</p> </li> <li class="message brief"><p class="_message">-2</p> </li> <li class="message brief"><p class="_message">0</p> </li> <li class="message brief"><p class="_message">1/2</p> </li> <li class="message brief"><p class="_message">1/4</p> </li> </ul> <ul class="xg_messageList"> <li class="message brief"><p class="_message">Let f(x)=3x and g(x)=x+2 define functions f and g from R to R. Then (f.g)(x)=......</p> </li> <li class="message brief"><p class="_message">4x+2</p> </li> <li class="message brief"><p class="_message">3x+6</p> </li> <li class="message brief"><p class="_message">0</p> </li> <li class="message brief"><p class="_message">3x.x+6x</p> </li> </ul> Please all students related t… tag:vustudents.ning.com,2013-12-09:3783342:Comment:3779629 2013-12-09T14:22:46.131Z + M.Tariq Malik https://vustudents.ning.com/profile/malik12 <p><b>Please all students related this subject Share your online Quizzes here to help each other.thanks</b></p> <p><b> </b></p> <p><b>Please share the question and their answers of this quiz if anyone has done.<br/> Thanks. </b></p> <p><b>Please all students related this subject Share your online Quizzes here to help each other.thanks</b></p> <p><b> </b></p> <p><b>Please share the question and their answers of this quiz if anyone has done.<br/> Thanks. </b></p>