if x=√5-√2/√5+√2 and y=√5+√2/√5-√2 find the value of x^2+y^2
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Step-by-step explanation:
Answer:
x=√5-√2/√5+√2
y=√5+√2/√5-√2
Step-by-step explanation:
x^2+y^2
(√5-√2/√5+√2)^2+(√5+√2/√5-√2)^2
5-2/5+2+5+2/5-2
3/7+7/3
9+49/21
58/21
x^2+y^2=58/21
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