Question

Classify the real number of -square root 81

Answer 1

Answer:

The square root of 81 is 9. This means that the square root of 81 is a rational number.

Answer 2

$\huge\pink{AnsWeR}$

$\star\sf-\sqrt{81}$

$\sf-\sqrt{3×3×3×3}$

$\sf-{3×3}$

$\implies-\sf{9}$

THEREFORE,$\sf-\sqrt{81}\implies-{9}$