Question

Using identities evaluate: 8.56 * 11.60.

Answer 1

$= 8.56 \times 11.60 \\ \\ = (10.08 - 1.52) \times (10.08 + 1.52) \\ \\ - - - - - - \\ \\ using \: identity \: \: of \: a {}^{2} - {b}^{2} \\ \\ - - - - - - - - \\ \\ = (10.08 {}^{2} - 1.52 {}^{2} ) \\ \\ {\mathfrak{Here is your answer.. Hope this helps you}}$