Write the word or phrase that best completes each statement or answers the question.
Provide an appropriate response.
-$\sqrt { - 49 }$
A) $7 \mathrm { i }$
B) $\pm 7$
C) $- 7 \mathrm { i }$
D) $\mathrm { i } \sqrt { 7 }$

Question

Quizplus · Accepted Answer

The square root of a negative number involves the imaginary unit $i$, where $i = \sqrt{-1}$. Therefore, $\sqrt{-49} = \sqrt{49} \cdot \sqrt{-1} = 7i$.

Write the Word or Phrase That Best Completes Each Statement −49\sqrt { - 49 }−49​

Write the Word or Phrase That Best Completes Each Statement $\sqrt { - 49 }$