Assignment No. 1

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Assignment No. 1
 
MTH101 ( Spring 2015 )
            
                         Total marks: 20
                      Lectures: 01 to 18  
              Due date: June 8, 2015
 
DON’T MISS THESE Important instructions:
 
•  There are Four Sections and Each section carries 20 marks.
 
•  Solve all questions of ONLY THAT ONE SECTION which is directed in your
ANNOUNCEMENT page. If you do not solve the INSTRUCTED SECTION, your
marks will be deducted. See your ANNOUNCEMENT page.
 
•  Solve your assignment in MS Word, using Math Type Software.
•  File with jpg or other image files will be awarded ZERO marks.
 
 
SECTION 1  ( For the students with Section incharge Miss Zakia Rehmat.
Question: 1                                                                                                                                               Marks: 5 + 5
a)  Solve the following inequality and write the solution in the form of intervals.
                                                  321
55
x −>  
 
b)  Find the domain and range of the following function.
 
                                  2
1()
4
gz
z
=
−
 
 
Question: 2                                                                                                                                              Marks: 3 + 2
Consider the following function.
                                               
32
2()
36
xxfx
x
−
=
−
 
 
a)   
Construct a table for the values of  ()fx corresponding to the following values
of x and estimate the limits
2
lim ( )x
fx−
→
 and
2
lim ( )x
fx+
→
respectively.
 
         
1.97,1.9997, 1.999997,1.98, 1.9998
2.02, 2.01, 2.0002, 2.0001, 2.000001
x
x
=
=
 
 
b)  
          Evaluate the limit  2
lim ( )x
fx→
 algebraically.
 
 
Question: 3                                                                                                                                                  Marks: 5
Write the function in the form of  ()y fu= and  ()u gx= , then find  dy
dx
 as a function of x.
 
                                4
5 cos sin cosy x xx−
= +  
 
Hint: Use “CHAIN RULE” to solve it
           
 
SECTION 2    ( For the students registered with Section incharge Mr. Imran Talib )
Question: 1                                                                                                                                              Marks: 5 + 5
 
(a)  Solve the following inequality and show the solution set on the real line.  
 
                                                            
4 2
3
x
x
+
br/>−
   
(b)  Find the centre and radius of the circle with equation:  
 
                                                          22
10 8 59 0xy xy+− +−=         
 
                                                                                                                                     
Question: 2                                                                                                                                               Marks: 5 + 5
 
( ) graphed here, state whether the following limits exist or not?
If they exist then determine it .Moreover, if they do not exist then just
(a) For the following functi
ify the answer with appropriate r
o
e on
n
as .
s ft=
                                                       
0
2
1
(I) lim ( )
(II) lim ( )
(III) lim ( )
t
t
t
ft
ft
ft
→
→
→
−
−
 
4 3 2 1 1 2
1.0
0.5
0.5
1.0
 
2
2
23
43
(b) Let ( ) xx
x
x
x
h −−
−+
=  
3
(I) Make a table of the values of at 2.9 2.99 2.999 2.9999 and so on.Then estimate lim ( ).
What estimate do you arrive at if you evaluate at 3.1 3.01 3.001 and so on ?
,, , ,
,, ,
x
h x hx
hx
→
=
=
 
3
(II) Find lim ( ) algebraically.
x
hx
→
 
SECTION 3   ( For the students registered with Section incharge Mr Muhammad
Sarwar  )
Question: 1                                                                                                                                                      Marks: 5  
Given that A (5, 1) and B (3, 4). Find
                (i) Slope of line joining A and B,
               (ii) Equation of line passing through A and B                      
Question: 2                                                                                                                                                      Marks: 5
 Find the center and radius of the circle with equation,
  22
3 3 21 6 7 0x y xy+ − + +=                     
Question: 3                                                                                                                                                    Marks: 5
              Evaluate,  
2
3
4 36lim
3x
x
x→
−
−                   
        
Question: 4                                                                                                                                                     Marks: 5
Find the derivative of   2
() 1fx x= −  by definition  /
0
( ) ()( ) limh
fx h fxfx
h→
+−=
    
SECTION 4      
( For the students registered with Section incharge Mr. Mansoor Khurshid )  
Question: 1                                                                                                                                                      Marks: 5
Find the slope and y-intercept of the line  3 12 27 0.xy− +=  Deduce the x-intercept from the
equation of the line.                                                                                                   
Question: 2                                                                                                                                                Marks: 3 + 2
(a) What do you judge about the differentiability of  ()fx x=  at  0x = ?             
              Support your answer with explanations and reasoning.
 
 
(b) Write names of two functions which are continuous on the set of real numbers  ( ) .. ,R ie −∞ ∞  
 
 Question: 3                                                                                                                                             Marks: 2 + 3                           
      (a) Let ( ) 200hx = . Investigate the value of  ()hx when  x approaches to  .∞               
       (b)  Find  tandx
dx sin x



          
   Question: 4                                                                                                                                                Marks: 5  
  Find the derivative of the function tany sin x cos x sec x x= +− ,  using “CHAIN RULE”
(i.e., by using some appropriate substitution).                                                      
 
 
 
 
 
 
 

[Ehtisham Jamshed]

Section # 1 Solution?

[ѻἏўєѕḩḁ ѻ]

ap plz ye explain kro k ye table kis trha bnaya hy ye explain kro plz ap @  Saleheen BSCS 1st Semister

[Saleheen BSCS 1st Semister]

set of all number from o to infinity except 2

[Saleheen BSCS 1st Semister]

[binteahmad]

ye galat h! derivative lga k solve krna, aisy simple tw nae krna

[Saleheen BSCS 1st Semister]

[binteahmad]

ye galt lg rha,not sure

[Saleheen BSCS 1st Semister]

tell me when you are sure about this one..

[binteahmad]

dono sahe, answer same ata

[Saleheen BSCS 1st Semister]

ye sahi ha..?

[Saleheen BSCS 1st Semister]

[Muneer Butt]

steps ko define zaror kero agar koe baich men chore rahay ho ton this is also correct solution