If u=- f''(theta) sin theta+f' (theta) c...

If `u=- f''(theta) sin theta+f' (theta) cos theta` and

`v=f'' (theta) cos theta+f'(theta) sin theta`
find `int[((du)/(d theta))^2+((dv)/(d theta))^2]^(1/2) d theta`

A

`f (theta)-f''(theta)+c`

B

`f (theta)+f''(theta)+c`

C

`f'(theta)+f''(theta)+c`

D

`f'(theta)-f''(theta)+c`

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The correct Answer is:

B

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