已知圆（x-3）²+（y-4）²=16,直线l:kx-y-k=0,若l与圆交与两个不同点P,Q,求实数k的取值范围

已知圆（x-3）²+（y-4）²=16,直线l:kx-y-k=0,若l与圆交与两个不同点P,Q,求实数k的取值范围
已知圆（x-3）²+（y-4）²=16,直线l:kx-y-k=0,若l与圆交与两个不同点P,Q,求实数k的取值范围

已知圆（x-3）²+（y-4）²=16,直线l:kx-y-k=0,若l与圆交与两个不同点P,Q,求实数k的取值范围
直线和园相交
所以圆心到直线距离小于半径
所以|3k-4-k|/√(k²+1)

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