1.若tanα tanβ是方程x-6x+7-0的两个根,则α+β=?2.圆O1+:X+Y-2X=0和圆O2:X+Y-4Y=0的位置关系?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 05:42:33
![1.若tanα tanβ是方程x-6x+7-0的两个根,则α+β=?2.圆O1+:X+Y-2X=0和圆O2:X+Y-4Y=0的位置关系?](/uploads/image/z/5924355-51-5.jpg?t=1.%E8%8B%A5tan%CE%B1+tan%CE%B2%E6%98%AF%E6%96%B9%E7%A8%8Bx-6x%2B7-0%E7%9A%84%E4%B8%A4%E4%B8%AA%E6%A0%B9%2C%E5%88%99%CE%B1%2B%CE%B2%3D%3F2.%E5%9C%86O1%2B%EF%BC%9AX%2BY-2X%3D0%E5%92%8C%E5%9C%86O2%EF%BC%9AX%2BY-4Y%3D0%E7%9A%84%E4%BD%8D%E7%BD%AE%E5%85%B3%E7%B3%BB%3F)
xPNA)w}B`B((
0_h@#ayZ?YgBH5ss9ZԭHl8 mrA*}-1mf5iuC'37G]@QG6|c5uSr<Λ&>똝G}RI/!
!Xg.'!caGv9ENHT6tIw"; aaCr?%U)%N{֪q/$~eyG`ĽqJ kQk+X>,&ܬŔz&9!|hi5]g