Question

please answer me in a right way I think this is easy​

Answer 1

$\rightarrow \left( \frac{5}{9} \right)^{4} \times \left( \frac{5}{9} \right)^{ - 2}$

$\rightarrow \left( \frac{5}{9} \right)^{4 - 2}$

$\rightarrow \left( \frac{5}{9} \right)^{ 2}$

$\boxed{\rightarrow \frac{25}{81} }$

Laws of exponents

$\sf {a}^{m} \times {a}^{n} = {a}^{m + n} \: \: \: \: \: \: \: \: \: \: \sf {a}^{m} \div {a}^{n} = {a}^{m - n} \\ \sf{( {a}^{m} ) ^{n} = {a}^{mn} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: a {}^{m} \times {n}^{m} = (ab) ^{m} } \\ \sf{a}^{0} = 1 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: {\frac{ {a}^{m} }{ {b}^{m} }= \left( \frac{a}{b} \right) ^{m} }$

Answer 2

Answer:

this is your answer

18/25