Question

Please tell the answer​

Answer 1

Answer:

$x = \sqrt{5} + 2 \\ \\ x - \frac{1}{x} = \sqrt{5} + 2 - \frac{1}{ \sqrt{5} + 2} \times \frac{ \sqrt{5} - 2 }{ \sqrt{5} - 2} \\ = \sqrt{5 } + 2 - \frac{ \sqrt{5} - 2 }{5 - 4} \\ = \sqrt{5 } + 2 - \sqrt{5} + 2 \\ = 4 \\\red{\rightarrow correct\:answer \:is \:4}\\ \\ \red{\mathfrak{ \large{\underline{{Hope \: It \: Helps \: You}}}}} \\ \blue{\mathfrak{ \large{\underline{{Mark \: Me \: Brainliest}}}}}$