Question

me ajudem pfvr♡♡♡♡♡♡♡♡♡

Answer 1

$\sqrt{ \frac{81}{64} } \times (( { \frac{1}{2} })^{2} - ( { \frac{2}{3} })^{1 }) = \frac{ \sqrt{81} }{ \sqrt{64} } \times ( \frac{1}{4} - \frac{2}{3} ) = \\ = \frac{9}{8} \times ( \frac{3 - 8}{12} ) = \frac{9}{8} \times \frac{ - 5}{12} = \frac{ - 45}{96} \\ \\ b) {( \frac{1}{2} )}^{2} + {( \frac{1}{3} )}^{1} + {( \frac{1}{3} )}^{2} = \frac{1}{4} + \frac{1}{3} + \frac{1}{9} = \\ = \frac{9}{36} + \frac{12}{36} + \frac{4}{36} = \frac{25}{36}$