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

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/20 09:10:44
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)

悍妇打广告嘎嘎嘎灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌顾uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu iiiiiiiiiiiiiiiiiiiiiiiii;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;...

全部展开

悍妇打广告嘎嘎嘎灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌灌顾uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu iiiiiiiiiiiiiiiiiiiiiiiii;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

收起