Question

Find all the real square roots of -9/16

Answer 1

Observe...\[(-n)^2 = n^2\]\[n^2 = n^2\]A number has real square roots if and only if it is positive.

Answer 2

\[\sqrt {\frac{ -9 }{ 16}}= \frac{ 3i }{ 4 }\]

Answer 3

@ghazi: *real* square roots =)

Answer 4

that doesnt exist for this rational number

Answer 5

@ParthKohli

Answer 6

Exactly.