CUET Mathematics 2026 19th May Shift 1 PYQs

The edge of a cube is increasing at a rate of 7 cm/s. The rate of change of area of the cube when its side is 3 cm is:

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

A cylinder with height 'h' and radius of base is 'r' which is open at the top having a given outer surface area, then volume of the cylinder is maximum if