Q.The function $f(x) = |x + 100| + |x|$ is not differentiable at $x =$

-100

100

all of these

The correct solution involves applying the fundamental concept to derive the final value step by step...

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Q.The function f(x)=∣x+100∣+∣x∣f(x) = |x + 100| + |x|f(x)=∣x+100∣+∣x∣ is not differentiable at x=x =x=