Question

find the value
please help me its really urgent
I will mark brainliest for the person that will give me correct answer.
it's really urgent

Answer 1

0.414 is the correct answer taking only the positive value of (√2-1)

Answer 2

$\sqrt{ \frac{ \sqrt{2}-1 }{ \sqrt{2} +1} }$
=$\sqrt{ \frac{ \sqrt{2}-1 }{ \sqrt{2} +1} } = \sqrt{( \sqrt{2} -1)( \sqrt{2}-1) } = \sqrt{ ( \sqrt{2} -1)^{2}$$\sqrt{ \frac{ \sqrt{2}-1 }{ \sqrt{2} +1} } = \sqrt{( \sqrt{2} -1)( \sqrt{2}-1) } = \sqrt{ ( \sqrt{2} -1)^{2} } = \sqrt{2} -1 =1.414-1 =0.414$