If x^2+ y^2=26 and xy =3 ,find the value of : x^4 +y^4 – InterviewSolution

1.

If x^2+ y^2=26 and xy =3 ,find the value of : x^4 +y^4

Answer»

$xy=3\\<klux>X</klux>=3/y\\$

SUBSTITUTE the VALUE of x in E.

$(3/y)^2+y^2=26\\9/y^2+y^2=26\\$

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