关于x的方程x²+(2k+1)x+k-1=0.有两个不相同的实根.问当两根都为正数时和都为负数时,K的取值范围.请详细回答.(两根为一正一负时,k的取值范围 该问是楼主自己提出,不只有没有解,)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 17:18:09
![关于x的方程x²+(2k+1)x+k-1=0.有两个不相同的实根.问当两根都为正数时和都为负数时,K的取值范围.请详细回答.(两根为一正一负时,k的取值范围 该问是楼主自己提出,不只有没有解,)](/uploads/image/z/13878642-66-2.jpg?t=%E5%85%B3%E4%BA%8Ex%E7%9A%84%E6%96%B9%E7%A8%8Bx%26%23178%3B%2B%EF%BC%882k%2B1%EF%BC%89x%2Bk-1%3D0.%E6%9C%89%E4%B8%A4%E4%B8%AA%E4%B8%8D%E7%9B%B8%E5%90%8C%E7%9A%84%E5%AE%9E%E6%A0%B9.%E9%97%AE%E5%BD%93%E4%B8%A4%E6%A0%B9%E9%83%BD%E4%B8%BA%E6%AD%A3%E6%95%B0%E6%97%B6%E5%92%8C%E9%83%BD%E4%B8%BA%E8%B4%9F%E6%95%B0%E6%97%B6%2CK%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.%E8%AF%B7%E8%AF%A6%E7%BB%86%E5%9B%9E%E7%AD%94.%EF%BC%88%E4%B8%A4%E6%A0%B9%E4%B8%BA%E4%B8%80%E6%AD%A3%E4%B8%80%E8%B4%9F%E6%97%B6%2Ck%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4+%E8%AF%A5%E9%97%AE%E6%98%AF%E6%A5%BC%E4%B8%BB%E8%87%AA%E5%B7%B1%E6%8F%90%E5%87%BA%2C%E4%B8%8D%E5%8F%AA%E6%9C%89%E6%B2%A1%E6%9C%89%E8%A7%A3%2C%EF%BC%89)
xUN@KH4cTPGKj/>Q)($J
MĔA/t ^*z=;fxV_@x?Goyk1ujz&vXSo3$5d'}^ƹ.kB_}c.]v퓭sRho|lYK֚vuVpq;۔93N=}U=Z#ǵ;t7/H6W"'9Y틐>>gPY?i"i~'YMJ@%F )aHP$M"hRwtcmO5b
]{a@bk
璒 E D% 5[PjR{w;? m}-cSUʃJB@~ z;p ƥY:ޡu1!l`;Y(ǬT/Rxۓ
b5fh1S)}"*