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Let f(x)={x^2 |cospi/x|, ,x !=0, x in ...

Let `f(x)={x^2 |cospi/x|, ,x !=0, x in R, x=0` then `f` is

A

diff. at x = 0 and x = 2

B

diff. at x = 0 but not at x = 2

C

not diff at x = 0,but diff. at x = 2

D

differentiable neither at x = 0 nor x = 2

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The correct Answer is:
A
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