若直线2x-y-10=0经过直线4x+3y-10=0和ax+2y+8=0,则a=
详细过程在线等 谢谢
人气:492 ℃ 时间:2019-10-11 21:09:27
解答
如果是三直线交于一点
2x-y-10=0,4x+3y-10=0
交点(4,-2)
ax+2y+8=0
4a+2*-2+8=0
a=-1
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