Verified Answer :

hope you know that sqrt(-1) = i 

so in this case than there are sqrt(-18) = isqrt(92) = isqrt(3^2 2) = 3isqrt2

so choice B. is right sure

Answer:

B. 3i√2.

Step-by-step explanation:

Given : √-18


To find : Which choice is equivalent to the expression below.

Solution : We have given that √-18
.

As w know that \(\sqrt{-1}  = i\).

We can write \(\sqrt{18} = \sqrt{9 * 2} = \sqrt{9} * \sqrt{2}\).

\(\sqrt{18} = 3 * \sqrt{2}\).

√-18  = \(\sqrt{-1}\)  \(3 * \sqrt{2}\).

√-18  = i [/tex]  \(3 * \sqrt{2}\).

Therefore, B. 3i√2.