Question

Me ajudem pfv!!!!!! /a) V 1/4 + V 9/25=/b)V 1/4 + V 4/9=/c) V 1/4 -V 9/25/

Answer 1

$a) \sqrt{ \frac{1}{4} } + \sqrt{ \frac{9}{25} } \to \frac{1}{2} + \frac{3}{5} \to mmc=10\to \frac{5+6}{10}\to \boxed{ \frac{11}{10}} \\\\\\\\ b) \sqrt{ \frac{1}{4} } + \sqrt{ \frac{4}{9} } \to \frac{1}{2} + \frac{2}{3} \to mmc=6\to \frac{3+4}{6}\to \boxed{ \frac{7}{6}} \\\\\\\\ c) \sqrt{ \frac{1}{4} } - \sqrt{ \frac{9}{25} } \to \frac{1}{2} - \frac{3}{5} \to mmc=10\to \frac{5-6}{10}\to \boxed{- \frac{1}{10}}$