plz do this and with the process. wrong answer will get reported OK fine
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Hello
first of all x+y=2(2+root5)sqrt
so, ( x+y)2=4(4+5+4root5)=36+16root5
2xy=2(2+root5)(2-root5)=2(4-5)=-2
So, x2+y2= ( x+y)2 -2xy=38+16root 5
Hope it helps.
first of all x+y=2(2+root5)sqrt
so, ( x+y)2=4(4+5+4root5)=36+16root5
2xy=2(2+root5)(2-root5)=2(4-5)=-2
So, x2+y2= ( x+y)2 -2xy=38+16root 5
Hope it helps.
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