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# MTH 301 Calculus II . Assignment No 2. Virtual University . Due Date Jul 17,2014.

Total marks: 20

Lecture # 23 to 30

Due date: July 17, 2014

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### Replies to This Discussion

Our main purpose here discussion not just Solution

We are here with you hands in hands to facilitate your learning and do not appreciate the idea of copying or replicating solutions.

For assignment check previous Assignment solution would be helpful !!

=-3/4i+j

check my solution guide me if m wrong

Attachments:

(i) Symmetry about the Initial Line

If the equation of a curve remains unchanged when (r,θ)
is replaced by either (r,-θ) in its equation ,then the curve

If when (r, θ) is replaced by either (r,π θ − ) in
The equation of a curve and an equivalent equation
is obtained ,then the curve is symmetric about the
line perpendicular to the initial i.e, the y-axis

If the equation of a curve remains unchanged

when either (-r, θ) or is substituted for (r, θ)
in its equation ,then the curve is symmetric
about the pole. In such a case ,the center of
the curve.

It is full answer of Q.1 ?

OR

Its only hint?

A curve is symmetric about initial line if we replace (r,θ) by (r, -θ) or (-r, π -θ) and its equation remains unchanged.

but in this case when we put (r, -θ), equation changes. As sin(-θ)= -sin θ but when we put (-r, π -θ) the Equation remains unchanged. As sin(π -θ)= sin θ.  Both results should be same but they aren't. Can anybody help?

QUESTION NO. 2

SOLUTION:

1

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5

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