Question

if x is = 1/√2 -1, then find X + 1/X​

Answer 1

Step-by-step explanation:

X= 1/√2-1

X+1/X= (1/√2-1) + √2-1

= 1+(√2-1)(√2-1)

= 1+2+1-2√2

=4-2√2

=2(2-√2)

Hence , X+1/ X is 2(2-√2)