145k views
2 votes
Which value is equivalent to V-25?
A. -5i
B. -5
C. 5
OD. 5i​

User Rrswa
by
6.9k points

1 Answer

3 votes

Answer:


√(-25) = 5i

Explanation:

Given


\sqrt{-25

Required

An equivalent

We have:


\sqrt{-25

Express -25 as -1 * 25


√(-25) = √(-1 * 25)

Split


√(-25) = √(-1) * √(25)


√(25) = 5, so:


√(-25) = √(-1) * 5


√(-1) = i --- complex numbers

So:


√(-25) = i * 5


√(-25) = 5i

Hence, the equivalent is (D)

User Andersem
by
7.4k points