jee-main 2025 Q71

jee-main · India · session2_03apr_shift1 Composite & Inverse Functions Derivative of an Inverse Function
Q71. Let $f ( x ) = x ^ { 5 } + 2 x ^ { 3 } + 3 x + 1 , x \in \mathbf { R }$, and $g ( x )$ be a function such that $g ( f ( x ) ) = x$ for all $x \in \mathbf { R }$. Then $\frac { g ( 7 ) } { g ^ { \prime } ( 7 ) }$ is equal to :
(1) 14
(2) 42
(3) 7
(4) 1
Q71. Let $f ( x ) = x ^ { 5 } + 2 x ^ { 3 } + 3 x + 1 , x \in \mathbf { R }$, and $g ( x )$ be a function such that $g ( f ( x ) ) = x$ for all $x \in \mathbf { R }$. Then $\frac { g ( 7 ) } { g ^ { \prime } ( 7 ) }$ is equal to :\\
(1) 14\\
(2) 42\\
(3) 7\\
(4) 1