Question

1：当0＜k＜1/2时,直线L1：kx-y=k-1与直线L2：ky-x=2k的交点在第几象限?

Answer 1

1.

kx-y=k-1

ky-x=2k

联立：

x = k/(k-1)

y = (2k-1)/(k-1)

因为：0