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If f is an even function such that lim(h...

If f is an even function such that `lim_(hrarr0)(f(h)-f(0))/h` has some finite non-zero value, then

A

f is continuous and derivable at h= 0

B

f is continuous but not derivable at x = 0

C

f may be discontinuous at x = 0

D

none of these

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A
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