Question

if the value of x=√5-√2÷√5+√2 and value of y=√5+√2÷√5-√2 .then find the value of x square + y square + xy

Answer 1

Answer:

3

Solution:

find x squar or y squar using this formula

(a+b)2 = a squar + 2ab + b squar

and xy is also 1

than...

put the value of x squar y squar and xy

your answer will be 3