0 votes 0 votes True/False Question: Let $f$ be real valued, differentiable on $\left ( a,b \right )$ and ${f}'\left ( x \right )\neq 0$ for all $x \in \left ( a,b \right )$. Then $f$ is $1-1$. TIFR tifrmaths2012 + – soujanyareddy13 asked Aug 30, 2020 • edited Oct 19, 2020 by soujanyareddy13 soujanyareddy13 160 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.