一道数学题,求高手讲解!抛物线y=x^2+x-4与y轴交于点A,E(0,b)为y轴上一动点,过点E的直线y=x+b与抛物线交于点B、C. 求:是否存在这样的点b,使得三角形BOC是以BC为斜边的直角三
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/10 17:56:56
![一道数学题,求高手讲解!抛物线y=x^2+x-4与y轴交于点A,E(0,b)为y轴上一动点,过点E的直线y=x+b与抛物线交于点B、C. 求:是否存在这样的点b,使得三角形BOC是以BC为斜边的直角三](/uploads/image/z/5339310-6-0.jpg?t=%E4%B8%80%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98%2C%E6%B1%82%E9%AB%98%E6%89%8B%E8%AE%B2%E8%A7%A3%21%E6%8A%9B%E7%89%A9%E7%BA%BFy%EF%BC%9Dx%5E2%EF%BC%8Bx%EF%BC%8D4%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9A%2CE%EF%BC%880%2Cb%EF%BC%89%E4%B8%BAy%E8%BD%B4%E4%B8%8A%E4%B8%80%E5%8A%A8%E7%82%B9%2C%E8%BF%87%E7%82%B9E%E7%9A%84%E7%9B%B4%E7%BA%BFy%EF%BC%9Dx%EF%BC%8Bb%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%BA%A4%E4%BA%8E%E7%82%B9B%E3%80%81C.+++++++++++++++%E6%B1%82%EF%BC%9A%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E8%BF%99%E6%A0%B7%E7%9A%84%E7%82%B9b%2C%E4%BD%BF%E5%BE%97%E4%B8%89%E8%A7%92%E5%BD%A2BOC%E6%98%AF%E4%BB%A5BC%E4%B8%BA%E6%96%9C%E8%BE%B9%E7%9A%84%E7%9B%B4%E8%A7%92%E4%B8%89)
xRKr@d,Ub*:@B%0 `v81T! ̰BY$DE M7^w(f"u¿S>L/yA}E^Xc_$[O8v9ȌJRNG̺cVE]sl5Uk3/&T$Z߱fOE[s3^QW~5v9ӦJt3
}ӛ^lҌD!^mș]yDԏ_]<z#sCBcFyWQNCx8o7cҟԩ):zRAVq >"9hČ.doteY]J#u_p8f4PE9^G̸sFMϫ}ȌGM(|Qar|!Z> Nj88:${)V1yQiL_C7]!*AUkh-~zmOCOwë
-^o:!P~Z"0D@#'3SY||@j=j
a&w&o