The value of $$(625)^{-\frac{1}{2}}.$$​ is ___________.

Correct option is C

Given:

​$$(625)^{-\frac{1}{2}}$$​​

Concept Used:

​$$a^{-\frac{1}{2}} = \frac{1}{\sqrt{a}}$$​

Solution:

​$$(625)^{-\frac{1}{2}} = \frac{1}{\sqrt{625}} = \frac{1}{25}$$ = 0.04