Precalculus Examples

$\sqrt{\sqrt[3]{729}}$

Step 1

Rewrite $729$ as $9^{3}$ .

$\sqrt{\sqrt[3]{9^{3}}}$

Step 2

Pull terms out from under the radical, assuming real numbers.

$\sqrt{9}$

Step 3

Rewrite $9$ as $3^{2}$ .

$\sqrt{3^{2}}$

Step 4

Pull terms out from under the radical, assuming positive real numbers.

$3$