CUET Mathematics 2026 29th May Shift 1 PYQs

A spherical ice ball is melting at the rate of 100 $\pi$ cm³/min. The rate at which its radius is decreasing when its radius is 15 cm, is

The interval in which the function $f(x) = \log_e(2+x) - \frac{2x}{2+x}$ is increasing is

The maximum value of $f(x) = \frac{1}{4x^2 + 2x + 1}$ is