x²-12xy+36y²=0,则x-5y/x+5yA. 1/11 B. 1/y C. 11 D. y/11
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x²-12xy+36y²=0,则x-5y/x+5yA.1/11B.1/yC.11D.y/11x²-12xy+36y²=0,则x-5y/x+5yA.1/11B.1
x²-12xy+36y²=0,则x-5y/x+5yA. 1/11 B. 1/y C. 11 D. y/11
x²-12xy+36y²=0,则x-5y/x+5y
A. 1/11 B. 1/y C. 11 D. y/11
x²-12xy+36y²=0,则x-5y/x+5yA. 1/11 B. 1/y C. 11 D. y/11
x²-12xy+36y²=0
(x-6y)²=0
x=6y
(x-5y)/(x+5y)
=(6y-5y)/(6y+5y)
=1/11
所以选 A
x=6y
6y-5y/6y+5y=1/11
A