class 12 maths ex 6.1 ncert solution
EXERCISE 6.1 1. Find the rate of change of the area of a circle with respect to its radius r when. (class 12 maths ex 6.1 ncert solution) (a) r = 3 cm (b) r = 4 cm. Solution: We know that the area of a circle, Therefore, the rate of change … Read more