x-2-1-x-2-47-x-1-x-

Question Number 93177 by ar247 last updated on 11/May/20

x^{2} + \frac{1}{x^{2}} = 47

\sqrt{x} + \frac{1}{\sqrt{x}} = \dots

Commented by ar247 last updated on 11/May/20

h e l p

Commented by prakash jain last updated on 11/May/20

Similar question answer below .

You can follow same steps Q 93170

Commented by i jagooll last updated on 11/May/20

{(x + \frac{1}{x})}^{2} - 2 = 47 \Rightarrow x + \frac{1}{x} = 7

{(\sqrt{x} + \frac{1}{\sqrt{x}})}^{2} - 2 = 7 \Rightarrow \sqrt{x} + \frac{1}{\sqrt{x}} = 3