Question

simplify please tell question no 3 and 4​

Answer 1

Answer:

$\huge\underline\mathscr{Solution\::}$

$1) \longrightarrow$ $5^2 \div \bigg(\dfrac{1}{- 5}\bigg)^{2}$

$\rightarrow$ $25 \div \dfrac{1}{25}$

$\rightarrow$ $25 \times \dfrac{25}{1}$

$\rightarrow$ $625$

$\therefore$ $The \: answer \: of \: this \: question \: is \: 625$

$2) \Longrightarrow$ $\bigg(\dfrac{- 6}{7}\bigg)^{2} \div 3^2$

$\Rightarrow$ $\dfrac{36}{49} \div 27$

$\Rightarrow$ $\dfrac{36}{49} \times \dfrac{1}{27}$

$\Rightarrow$ $\cancel{\dfrac{36}{1323}}$

$\Rightarrow$ $\dfrac{4}{147}$

$\therefore$ $The \: answer \: of \: this \: question \: is \: \dfrac{4}{147}$