A) \[\frac{1}{10{{x}^{-7}}}\]
B) \[\frac{1}{10x+7}\]
C) \[\frac{x+7}{10}\]
D) \[\frac{x-7}{10}\]
Correct Answer: C
Solution :
Let \[f(x)=y.\]Then \[10x-7=y\] \[\Rightarrow \] \[x=\frac{y+7}{10}\] Now, \[F(x)=y\Rightarrow {{f}^{-1}}(y)=x=\frac{y+7}{10}.\]So \[f'(x)=\frac{x+7}{10}\]You need to login to perform this action.
You will be redirected in
3 sec