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Let f(x)= and

g(x)=|f(x)|+f(|x|). Then, in the interval (−2, 2), g is

(a)

Differentiable at all points

(b)

Not differentiable at two points

(c)

Not continuous

(d)

Not differentiable at one point



Question ID - 56972 | SaraNextGen Top Answer

Let f(x)= and

g(x)=|f(x)|+f(|x|). Then, in the interval (−2, 2), g is

(a)

Differentiable at all points

(b)

Not differentiable at two points

(c)

Not continuous

(d)

Not differentiable at one point

1 Answer
127 votes
Answer Key / Explanation : (d) -

|f(x)|=

And f(|x|)=x2−1, x∈[−2, 2]

Hence g(x)=

t is not differentiable at x=1

127 votes


127