# Math Help - write as a surd

1. ## write as a surd

x^-1/2
How would this be written as a surd?
1/2sqroot x?

2. ## notation

x ^ -1/2 = $
\frac { 1} { \sqrt x }
$

3. Originally Posted by wolfhound
x^-1/2
How would this be written as a surd?
1/2sqroot x?
not sure how this could become a surd since we don't know the value of x.

but this can be rewritten as $\frac{1}{\sqrt{x}}$ or $\frac{1}{x^{\frac{1}{2}}}$