Question

como debo resolver los puntos b, j, l​

Answer 1

Respuesta:

b. 3

j. 1/25

l. 1/4

Explicación paso a paso:

$b. \: ( \frac{2}{3} + \frac{1}{5} ) \frac{5}{2} + \frac{5}{6} \\ ( \frac{13}{15} ) \frac{5}{2} + \frac{5}{6} \\ \frac{13}{6} + \frac{5}{6} = \frac{18}{6} = 3$

$j. {( {( \frac{1}{5} })^{3 + 4}) }^{ \frac{2}{7} } \\ {( {( \frac{1}{5} })^{7}) }^{ \frac{2}{7} } \\ {( \frac{1}{5} )}^{7 \times \frac{2}{7} } \\ {( \frac{1}{5}) }^{2} = \frac{1}{25}$

$l. \: ( {8})^{ \frac{4}{9} \times \frac{ - 3}{2} } \\ {(8)}^{ \frac{ - 12}{18} } \\ {(8)}^{ \frac{ - 2}{3} } \\ { (\frac{1}{8}) }^{ \frac{2}{3} } \\ \sqrt[3]{ { (\frac{1}{8} )}^{2} } \\ { (\frac{1}{2}) }^{2} = \frac{1}{4}$