1.

Letf(x)bea continuousfunction for allx in R and f'(0) =1 then g(x)= f(|x|)= f(|X|)-sqrt((1-cos2x)/(2)), at x=0,

Answer»

is differentiableat x=0 ANDITS valueis 1
is disfferentiable at x=0 andits valueis 0
is non-differentaibleat x=0 asitsgraph has SHARP turn at x=o
is non - differentiableat x=0 as its graphhas veritical tanent at x=0

Answer :B


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