1/3 pangkat 7 × 1/3 pangkat -9

1/3 pangkat 7 × 1/3 pangkat -9

${ frac{1}{3} }^{7} times { frac{1}{3} }^{ - 9}$

${ frac{1}{3} }^{(7 + ( - 9))}$

${ frac{1}{3} }^{ - 2}$

${( {3}^{ - 1} ) }^{ - 2}$

${3}^{ - 1 times - 2}$

${3}^{2}$

$9$

Semoga dapat membantu 🙂

Jawab:

$frac{1}{3} ^{7}. frac{1}{3} ^{-9}=\frac{1}{3} ^{7+(-9)}=\frac{1}{3} ^{-2}=\frac{1}{frac{1}{3} ^{2}}=\frac{3}{1}^{2} =\3^{2}$