Question

Ex 7
Va rog dau coroana​

Answer 1

Explicație pas cu pas:

a)

$\frac{1}{ {2}^{4} } = \frac{1}{16}$

b)

$\frac{1}{10}$

c)

$\frac{1}{ {7}^{2} } = \frac{1}{49}$

d)

$- \frac{1}{ {5}^{3} } = - \frac{1}{125}$

e)

$\frac{1}{ { (\frac{2}{5}) }^{2} } = \frac{1}{ \frac{4}{25} } = \frac{25}{4}$

f)

$\frac{1}{ {( \frac{1}{ \sqrt{3} } )}^{4} } = \frac{1}{ \frac{1}{ { \sqrt{3} }^{4} } } = \frac{1}{ \frac{1}{9} } = 9$

g)

${ (\frac{5}{3} )}^{ - 2} = \frac{1}{ {( \frac{5}{3} )}^{2} } = \frac{1}{ \frac{25}{9} } = \frac{9}{25}$

h)

$- { (\frac{16}{7} )}^{ - 1} = - \frac{7}{16}$