Write the number as the product of a real number and i.
-$\sqrt { - 121 }$

A) $11 \sqrt { \mathrm { i } }$
B) $- 11 \mathrm { i }$
C) $11 \mathrm { i }$
D) $- \mathrm { i } \sqrt { 121 }$

Question

Write the number as the product of a real number and i.
-$\sqrt { - 121 }$

A) $11 \sqrt { \mathrm { i } }$
B) $- 11 \mathrm { i }$
C) $11 \mathrm { i }$
D) $- \mathrm { i } \sqrt { 121 }$

Quizplus · Accepted Answer

The square root of -121 can be written as $\sqrt{-121} = \sqrt{121} \cdot \sqrt{-1} = 11i$, where $i$ is the imaginary unit defined as $\sqrt{-1}$.

Write the Number as the Product of a Real Number −121\sqrt { - 121 }−121​