Question

81/121 in exponential form

Answer 1

Answer:

${( \frac{9}{11}) }^{2}$

Step-by-step explanation:

$\: \: \: \: \: \frac{81}{121}$

$= \frac{9 \times 9}{11 \times 11}$

$=( \frac{9}{11} )^{2}$

Some laws of exponents :

a^2/b^2 =(a/b)^2

a^2/a^3 = (a)^2×3

Answer 2

81/121

9×9/11×11

9²/11²

therefore........

9²/11² can further be written as [9/11]² because according to the laws of exponents:

a²/b²=[a/b]²