Question

va rog mult! E urgent!

Answer 1

$\it b)\ \ = 3^{12}:3^{10}+\dfrac{\not9\ ^3}{\not7}\cdot\dfrac{\not35\ ^5}{\not3}=3^2+15=24\\ \\ c)\ = \sqrt{\dfrac{9}{4}}\cdot\sqrt{\dfrac{4}{25}}\cdot\dfrac{1}{\sqrt{0,36}}=\dfrac{3}{\not2}\cdot\dfrac{\not2}{5}\cdot\dfrac{1}{0,6}=\dfrac{3}{3}=1$