Question

evolarate using identities 0.54×0.54_0.46×0.46

Answer 1

Use a^2 - b^2 =(a+b)(a-b)
Hence (0.54+0.46)(0.54-0.46)= 1 (0.08)
=0.08

Answer 2

0.54×0.54-0.46×0.46
=(0.54)²-(0.46)²
=(0.54-0.46)(0.54+0.46)[(a²-b²=(a+b)(a-b)]
=(0.08)(1.00)
=0.08