Skip to main content

Introduction to Complex Numbers

9. Roots, Radicals, and Complex Numbers / Introduction to Complex Numbers / 문제 4

문제 4

Simplify $\sqrt{- 72}$ fully, extracting perfect-square factors and following notation conventions.

A

$12 i the square root of one half$

B

$i the square root of 72$

C

$36 i$

D

$6 i the square root of 2$