Question

x = root2 +1 / root2 - 1 and y = root2 - 1 / root2+1 find the value of x²+y² ​

Answer 1

Step-by-step explanation:

i hope this is correct.. mark as brainiest

Answer 2

Step-by-step explanation:

X=√2+1/√2-1=3+2√2

y=3-2√2

(rationalize X and y)

x^2+y^2=(X+y)^2-2xy

x^2+y^2=(3+2√2+3-2√2)^2-2(3+2√2)(3-2√2)

x^2+y^2=(9)^2-2(9-8)

x^2+y^2=81-2=79

the answer is 79

hope it helps