Question

Вычислите: 1) 518^2 - 482^2/360; 3) 228 * 13/764^2 - 536^2.

Answer 1

$\frac{518^2-482^2}{360} = \frac{(518-482)(518+482)}{360} = \frac{36*1000}{360} =100$

$\frac{228*13}{764^2-536^2} = \frac{228*13}{(764-536)(764+536)} =\frac{228*13}{228*1300} = \frac{1}{100} =0,01$