Question

Value of
$\sqrt[4]{81 {}^{ - 2} }$
Plz answer ​

Answer 1

Step-by-step explanation:

$\sqrt[4]{81 {}^{ - 2} }$

$\sqrt[4]{ \frac{1}{81^{ 2}} }$

$\sqrt[4]{ \frac{1}{( {9}^{2}) ^{ 2}} }$

$\sqrt[4]{ \frac{1}{9^{ 2 \times 2}} }$

$\sqrt[4]{ \frac{1}{9^{ 4}} }$

$\frac{ \sqrt[4]{1} }{ \sqrt[4]{9 ^{4} } }$

$\frac{1}{9}$

I hope it is helpful

Answer 2

Answer:

this is the chapter 2 exponent and power from class 7th 8th so we get final result 1 by 9