Question

Ayudenme por favor URG..!!

Answer 1

RESOLUCIÓN :

$\frac{2}{AB}= \frac{1}{AP} + \frac{1}{AQ}$

$\frac{2}{AB}= \frac{1}{3} + \frac{1}{5}$

$\frac{2}{AB}= \frac{5+3}{15}$

$\frac{2}{AB}= \frac{8}{15} 30 =8AB$

$\frac{30}{8} =AB-- Simplificar$

$\frac{15}{4} =AB$

RESPUESTA :  AB es $\frac{15}{4}$