Answer :
hope you know that sqrt(-1) = i
so in this case than there are sqrt(-18) = isqrt(9*2) = isqrt(3^2 *2) = 3isqrt2
so choice B. is right sure
so in this case than there are sqrt(-18) = isqrt(9*2) = 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 [tex]\sqrt{-1} = i[/tex].
We can write [tex]\sqrt{18} = \sqrt{9 * 2} = \sqrt{9} * \sqrt{2}[/tex].
[tex]\sqrt{18} = 3 * \sqrt{2}[/tex].
√-18 = [tex]\sqrt{-1}[/tex] * [tex]3 * \sqrt{2}[/tex].
√-18 = i [/tex] * [tex]3 * \sqrt{2}[/tex].
Therefore, B. 3i√2.