Respuesta :

I'm pretty sure

[tex] \sqrt{ - 75} [/tex]

is undefined so the answer is none of them. If not then it would be

[tex]5 \sqrt{3} [/tex]

Answer:

The principal square root is 5i sqrt(3)

Step-by-step explanation:

sqrt(-75)

sqrt(-1) sqrt(75)

sqrt(-1) =± i

±i sqrt(75)

±i sqrt(25)sqrt(3)

±i 5sqrt(3)

±5i sqrt(3)

The principal square root is 5i sqrt(3)