CUET Mathematics 2022 25 May Shift 1 PYQs

The maximum value of the function $f(x) = x^2(60 - x)$ in [20, 80] is:

The critical points of $f(x) = x^3 + x^2 + x + 1$ are

The function $f(x) = \frac{-3}{4}x^4 - 8x^3 - \frac{45}{2}x^2 + 163$ has a local maxima at