Q5 Ans: B Explain once 5 Let f(x)=g(x) cos1xif x≠00 - Maths -

Question

Q5
Ans: B
Explain once

5 Let f ( x ) = g ( x ) cos 1 x if   x ≠ 0 0  
                 
          if   x = 0 where
g(x) is an even function differentiable at
x = 0, passing through the origin Then f'(0):
(A) is equal to 1
(B) is equal to 0
(C) is equal to 2
(D) does not exist

Kuldeep Verma · Accepted Answer

Dear student <img alt="" src=
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Q5. Ans: B. Explain once. 5. Let f ( x ) = g ( x ) . cos 1 x if x ≠ 0 0 if x = 0 where g(x) is an even function differentiable at x = 0, passing through the origin. Then f'(0): (A) is equal to 1 (B) is equal to 0 (C) is equal to 2 (D) does not exist

Q5.
Ans: B.
Explain once.

5. Let $f (x) = [\begin{matrix} g (x) . \cos \frac{1}{x} & if x \neq 0 \\ 0 & if x = 0 \end{matrix}$ where g(x) is an even function differentiable at x = 0, passing through the origin. Then f'(0):
(A) is equal to 1
(B) is equal to 0
(C) is equal to 2
(D) does not exist