Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Let `f R -> R` be defined by `f(x) = x^3 + 3x + 1` and g be the inverse of `f`. Then the value of`f'(5)` is equal to - Sarthaks eConnect

Let `f : R -> R` be defined by `f(x) = x^3 + 3x + 1` and g be the inverse of `f`. Then the value of`f'(5)` is equal to

`-1/36`

`-1/6`

`1/6`

`1/36`