Question

if x² + y² = 5xy, then prove

x²/y²+y²/x²=23​

Answer 1

Answer:

Sorry don't know ask from others

Answer 2

Step-by-step explanation:

sqaring,

(x^2 + y^2)^2 = 25 . x^2 . y^2

x^4 + y^4 + 2.x^2.y^2 = 25 . x^2 . y^2

x^4 + y^4 = 25 . x^2 . y^2 - 2.x^2.y^2

x^4 + y^4 = 23 . x^2 . y^2

÷ by x^2 . y^2,

x²/y²+y²/x²=23

hence it is proved.

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