Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Differential Calculus Differentiability
Let f(x) = |cos x|. Then,
1
f is everywhere differentiable.
2
f is everywhere continuous but not differentiable at n = nπ, n ∈ Z.
3
f is everywhere continuous but not differentiable at x = (2n + 1)\(\frac{\pi}{2}\), n ∈ Z.
4
More than one of the above
5
None of the above