Practicing Success
If the value of 2x-\(\frac{1}{x}\)=\(\sqrt {281}\) find the value of \(\frac{(2x+\frac{1}{x})^2+60}{3}\) |
111 \(\frac{349}{3}\) \(\frac{249}{3}\) 113 |
\(\frac{349}{3}\) |
If 2x-\(\frac{1}{x}\)=\(\sqrt {281}\) than 2x+\(\frac{1}{x}\) = \(\sqrt{(\sqrt{281})^2 + 4×2x×\frac{1}{x}}\) 2x+\(\frac{1}{x}\) = \(\sqrt{281+8}\) 2x+\(\frac{1}{x}\) = 17 ⇒ Put in find out ⇒ \(\frac{(2x+\frac{1}{x})^2+60}{3}\) = \(\frac{({17})^{2}+60}{3}\) = \(\frac{349}{3}\) |