Question

Using suitable identity evaluate (103)^3

Answer 1

Refer to the attachment.......

Answer 2

Step-by-step explanation:

ANSWER

(a) (103)3=(100+3) 3

=(100) 3 +3 3+3×100×3(100+3)

=1000000+27+90000+2700 =1092727

(b) (99)3=(100−1) 3=(100) 3 −1 3 −3×100×1(100−1)

=1000000−1−30000+300 =970299