Question

If x = √2 - 1, then find the value of 1/x.​

Answer 1

Answer:

√2 +1

Step-by-step explanation:

x = √2 - 1

1/x=1/(√2 - 1)

Rationalising denominator

=1/(√2 - 1)=1/(√2 - 1) x (√2 +1)/(√2 +1)

=(√2 +1)/(2−1)

= √2 +1