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

If `u =-f''(theta) sintheta + f'(theta) costheta` and `v = f''(theta) costheta + f'(theta) sintheta`,then `int[(du/(d theta))^2+(dy/(d theta))^2]^(1/2)d theta` is equal to

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If u =-f''(theta) sintheta + f'(theta) costheta and v = f''(theta) costheta + f'(theta) sintheta , then int[((du)/(d theta))^2+((dv)/(d theta))^2]^(1/2)d theta is equal to

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