Question

1.2 x 1.2+1.2x0.3+0.3x0.3/
1.2x1.2x1.2-0.3x0.3x0.3​

Answer 1

Answer:

1.111 approx

Step-by-step explanation:

let a=1•2 and b=0•3

now (1.2×1.2+1.2×0.3+0.3×0.3)/(1.2×1.2×1.2-0.3×0.3×0.3)

=(a^2+ab+b^2)/(a^3-b^4)

=(a^2+ab+b^2)/(a-b)(a^2+ab+b^2)

=1/(a-b)

=1/(1.2-0.3)

=1/0.9

=10/9

=1.111 (approx)