Question

if root 2 is equal to 1.414 find the value of 1 upon root 2+1

Answer 1

1/root3 is 1/1.732

0.5773

Answer 2

Here is your answer

$\frac{1}{ \sqrt{2} + 1} \\ = \frac{1}{ \sqrt{2} + 1 } \times \frac{ \sqrt{2} - 1 }{ \sqrt{2} - 1} \\ = \frac{ \sqrt{2} - 1 }{( \sqrt{2} ) {}^{2} - 1 {}^{2} } \\ = \frac{1.414 - 1}{2 - 1} \\ = \frac{0.414}{1} \\ = 0.414$
Hope it helps you