Question

Evalvate (103 into 102)using suitable identitiesa

Answer 1

Answer:

(103×102)

( 100+3) (100+2)

(x+a) (x+b)= X^2+ (a+ b)X + ab

100^2 + (3+2) 100 + 3×2

10000+5×100+6

10000+500+6

=10506

Answer 2

let take 102 as x+2

so,

we can write

103*102 as = (x+3)(x+2)

$103 \times 102 = (x + 3)(x + 2) \\ = {x}^{2} + 5x + 6 \\ {100}^{2} + 5 \times 100 + 6 \\ 10000 + 500 + 6 \\ = 10506$