Question

СРОЧНО ПОМОГИТЕ 1 задание!!!!!!

Answer 1

1)
$\frac{1}{3} + \frac{2}{5} + \frac{4}{15} = \frac{5}{15} + \frac{6}{15} + \frac{4}{15} = \frac{15}{15} = 1$
$log_{0.12}0.0144 = log_{0.12} {(0.12)}^{2} = 2$
${(ctg60)}^{ - 2} = { (\frac{ \sqrt{3} }{3} )}^{ - 2} = {( \frac{3}{ \sqrt{3} }) }^{2} = {( \sqrt{3} )}^{2} = 3$
${ 9}^{ log_{3}2 } = {3}^{2 log_{3}2} = {3}^{ log_{3} {2}^{2} } = {3}^{ log_{3}4 } = 4$