SOLUTION: if f(x)=SQRT of x what is f(-100) and f(48)

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Question 280828: if f(x)=SQRT of x
what is
f(-100)
and f(48)
Found 2 solutions by stanbon, oberobic:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
if f(x)=SQRT of x
what is
f(-100) = sqrt(100)*sqrt(-1) = 10i
f(48) = sqrt(16)*sqrt(3) = 4sqrt(3)
========================
Cheers,
Stan H.

Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29+=+sqrt%28x%29
.
f%28-100%29+=+sqrt%28-100%29
f%28-100%29+=+sqrt%28100%29%2Asqrt%28-1%29
.
i is an imaginary number that represents sqrt%28-1%29
.
f%28-100%29+=+10%2Ai
.
f%2848%29=sqrt%2848%29
f%2848%29+=sqrt%2816%29%2Asqrt%283%29
f%2848%29+=+4%2Asqrt%283%29
.
Done