Answer :

To rewrite the expression [tex]\(\frac{1}{x^{-\frac{3}{6}}}\)[/tex] in simplest radical form, we will go through the following steps:

1. Simplify the exponent [tex]\(-\frac{3}{6}\)[/tex]:
[tex]\[ -\frac{3}{6} = -\frac{1}{2} \][/tex]
So, we can rewrite the expression as:
[tex]\[ \frac{1}{x^{-\frac{1}{2}}} \][/tex]

2. Simplify the expression using the property of exponents:
Recall that for any positive number [tex]\(a\)[/tex] and any real number [tex]\(b\)[/tex], [tex]\(a^{-b} = \frac{1}{a^b}\)[/tex]. This means that:
[tex]\[ x^{-\frac{1}{2}} = \frac{1}{x^{\frac{1}{2}}} \][/tex]

3. Substitute this back into the original expression:
[tex]\[ \frac{1}{\frac{1}{x^{\frac{1}{2}}}} \][/tex]

4. Simplify the fraction:
Invert the denominator to get rid of the complex fraction:
[tex]\[ \frac{1}{\frac{1}{x^{\frac{1}{2}}}} = x^{\frac{1}{2}} \][/tex]

5. Convert the exponent form to radical form:
Recall that for any positive number [tex]\(a\)[/tex] and any positive integer [tex]\(n\)[/tex], [tex]\(a^{\frac{1}{n}} = \sqrt[n]{a}\)[/tex]. Hence,
[tex]\[ x^{\frac{1}{2}} = \sqrt{x} \][/tex]

Therefore, the expression [tex]\(\frac{1}{x^{-\frac{3}{6}}}\)[/tex] in the simplest radical form is:
[tex]\[ \boxed{\sqrt{x}} \][/tex]