11. Roots, Radicals, and Complex Numbers - 2! 2부

11. Roots, Radicals, and Complex Numbers / Introduction to Complex Numbers / 문제 3

문제 3

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

$12 i the square root of one half$

$i the square root of 72$

$36 i$

$6 i the square root of 2$

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