Question

Use a suitable identity to get each of following product
1) ( 1.1m - 0.4 ) ( 1.1m + 0.4 )​

Answer 1

Answer:

Given: (1.1m−0.4)(1.1m+0.4)

Lets use the identity(a+b)(a−b)=a

2

−b

2

(1.1m−0.4)(1.1m+0.4)=(1.1m)

2

−(0.4)

2

(1.1m−0.4)(1.1m+0.4)=1.21m

2

−0.16

Hoped it helped..