圆与方程 (15 17:19:0)已知与曲线C:x2+y2-2x-2y+1=0相切的直线l交x轴.y轴与A.B两点,O为原点,|OA|=a,|OB|=b(a大于2,b大于2)⑴求证:(a-2)(b-2)=2⑵求线段AB中点的轨迹方程⑶求△AOB面积最小值&
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/19 23:04:39
xV]OV+GTي.r"A/WIJv.3m8R/\(TZHVh)D(_,v{99Фb}x~+6kEoدL_SI}~Oœcn:4/Xa_z/Cd y\`icY;aŷxyVƅZÏe`IpYo{CqŁ٫t# \ˊs4{{ZwƶWrs`_HF{l?"M:1I#C(Ӝ58*맲Ty
=g'c%̌*5"fg&nt3KrWʠR"h陽bYoe=l
*mgeiӫ)%*ЬT^,g]R;"NLqM;L26tPX4)=LCFU05\pGK)
PN]?P ;I
R4D p-[j+Ata%]N#!T&
wgn #2>VepJ3IJjyEI"Rjh$+F}
S~UV0#._-Gf5m%nj()\y]˫1!s|T$Dp,ɳnO6N^*46