Question

Using identity find: 8.63*8.63-1.37*1.37 divided by 0.726

Answer 1

Answer:

Given,  (8.63 × 8.63 – 1.37 × 1.37)/0.726 Using formula (a – b) (a + b) = a2 – b2 We get, (8.63 × 8.63 – 1.37 × 1.37)/0.726  = ((8.63)2 – (1.37)2)/0.726 = ((8.63-1.37) (8.63+1.37))/0.726 = (7.26 × 10)/0.726 = 72.6/0.726 = 100