Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Last updated at July 20, 2023 by Teachoo
Ex 5.2, 1 Find the square of the following numbers. (iv) 93We know that 93 = 90 + 3 Now, 932 = 93 × 93 = (90 + 3) × (90 + 3) = (90 + 3)2 = 902 + 32 + 2 × 90 × 3 = 8100 + 9 + 540 = 8649