Question

if x equals to root 2 minus 1 then write the value of i upon x

Answer 1

$x = \sqrt{2} - 1 \\ \\ \frac{1}{x} = \frac{1}{ \sqrt{2} - 1 } \times \frac{ \sqrt{2} + 1}{ \sqrt{2} +1 } \\ \\ = \frac{ \sqrt{2} + 1 }{ ({ \sqrt{2} )}^{2} - {(1)}^{2} } \\ \\ = \frac{ \sqrt{2} + 1 }{2 - 1} \\ \\ = \frac{ \sqrt{2} + 1}{1} \\ \\ = \sqrt{2} + 1$

Answer 2

answer is root 2 plus 1