Express the number in terms of j (if necessary, round the result to three significant digits). $\sqrt { - 5 }$
A) $- 2.24 j$
B) $2.24$
C) $2.24 j$
D) $- 5$
E) $5 j$

Question

Quizplus · Accepted Answer

The square root of a negative number is an imaginary number, denoted by j. To find the value of $\sqrt{-5}$, we can write it as $\sqrt{(-1)(5)}$ and simplify it further as $\sqrt{-1}\sqrt{5}=j\sqrt{5}$. Therefore, the answer is $2.24j$ (rounded to three significant digits).

Express the Number in Terms of J (If Necessary, Round −5\sqrt { - 5 }−5​

Express the Number in Terms of J (If Necessary, Round $\sqrt { - 5 }$