Question

If $f ^{\prime}\left(0^{+}\right)= p$ and $f ^{\prime}\left(0^{-}\right)= q$, then which one of the fowing is correct?

• A. pexists but q does not exists.
• B. q exists but $p$ does not exists.
• C. $p = q =0$
• D. $(p-q)$ is a non zero finite quantity.

Answer 1

Answer: (C)

Correct answer is (c) $p = q =0$