若1/x-1/y=3,则2x+3xy-2y/x-xy-y的值为多少
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若1/x-1/y=3,则2x+3xy-2y/x-xy-y的值为多少
![若1/x-1/y=3,则2x+3xy-2y/x-xy-y的值为多少](/uploads/image/z/7806310-70-0.jpg?t=%E8%8B%A51%2Fx-1%2Fy%3D3%2C%E5%88%992x%2B3xy-2y%2Fx-xy-y%E7%9A%84%E5%80%BC%E4%B8%BA%E5%A4%9A%E5%B0%91)
若1/x-1/y=3,
则2x+3xy-2y/x-xy-y
=(2/y+3-2/x)/(1/y-1-1/x)
=(3-2×3)/(-1-3)
=-3/(-4)
=3/4;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,
则2x+3xy-2y/x-xy-y
=(2/y+3-2/x)/(1/y-1-1/x)
=(3-2×3)/(-1-3)
=-3/(-4)
=3/4;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,
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