⒈ 解方程 (X+7)/(X+6)+(X+9)/(X+8)=(X+10)/(X+9)+(X+6)/(X+5)⒉ 若1/X-1/Y=3 求(2X-3XY-2Y)/(X-2XY-Y)的值⒊ 若1/(Y+Z)=Y/(Y+Z+1)=Z/(X+Y-1)=X+Y+Z 求X+Y+Z的值⒋若a+b+c=0 abc=8 求证 abc3个数的倒数和等于0/代表分号
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 17:07:31
![⒈ 解方程 (X+7)/(X+6)+(X+9)/(X+8)=(X+10)/(X+9)+(X+6)/(X+5)⒉ 若1/X-1/Y=3 求(2X-3XY-2Y)/(X-2XY-Y)的值⒊ 若1/(Y+Z)=Y/(Y+Z+1)=Z/(X+Y-1)=X+Y+Z 求X+Y+Z的值⒋若a+b+c=0 abc=8 求证 abc3个数的倒数和等于0/代表分号](/uploads/image/z/10375546-58-6.jpg?t=%E2%92%88+%E8%A7%A3%E6%96%B9%E7%A8%8B+%28X%2B7%29%2F%28X%2B6%29%2B%28X%2B9%29%2F%28X%2B8%29%3D%28X%2B10%29%2F%28X%2B9%29%2B%28X%2B6%29%2F%28X%2B5%29%E2%92%89+%E8%8B%A51%2FX-1%2FY%3D3+%E6%B1%82%282X-3XY-2Y%29%2F%28X-2XY-Y%29%E7%9A%84%E5%80%BC%E2%92%8A+%E8%8B%A51%2F%28Y%2BZ%29%3DY%2F%28Y%2BZ%2B1%29%3DZ%2F%28X%2BY-1%29%3DX%2BY%2BZ+%E6%B1%82X%2BY%2BZ%E7%9A%84%E5%80%BC%E2%92%8B%E8%8B%A5a%2Bb%2Bc%3D0+abc%3D8+%E6%B1%82%E8%AF%81+abc3%E4%B8%AA%E6%95%B0%E7%9A%84%E5%80%92%E6%95%B0%E5%92%8C%E7%AD%89%E4%BA%8E0%2F%E4%BB%A3%E8%A1%A8%E5%88%86%E5%8F%B7)
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