Question

if if if x is equals to 1 by root 3 + 1 then find the value of x + 1 by X​

Answer 1

X = √(3+1)/√(3-1)

=√4/√2

=√2

Y = √(3-1)/√(3+1)

=√2/√4

=1/√2

X^2 + XY - Y^2 =

(√2)^2 + (√2)(1/√2) -(1/√2)^2

=2+1 -1/2

= 3 + 1/2

= 7/2