If $$\sqrt 5 = 2.236{\text{,}}$$ then the value of $$\frac{1}{{\sqrt 5 }}$$ is = ?
A. 0.367
B. 0.447
C. 0.745
D. None of these
Answer: Option B
Solution(By Examveda Team)
$$\eqalign{ & = \frac{1}{{\sqrt 5 }} \cr & = \frac{1}{{\sqrt 5 }} \times \frac{{\sqrt 5 }}{{\sqrt 5 }} \cr & = \frac{{\sqrt 5 }}{5} \cr & = \frac{{2.236}}{5} \cr & = 0.447 \cr} $$Related Questions on Square Root and Cube Root
The least perfect square, which is divisible by each of 21, 36 and 66 is:
A. 213444
B. 214344
C. 214434
D. 231444
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