CUET Mathematics 2022 25 May Shift 1 PYQs

The value of a for which the function $f(x) = a^x$ is increasing on R are given by :

If $x = \log t$ and $y = \frac{1}{t^2}$, then $\frac{d^2 y}{d x^2}$ is equal to

If $x = 6t^2$, $y = \frac{6}{t^2}$, then $\frac{d^2 y}{dx^2}$ is equal to :