k为何值时,不等式1/2(kx+8)>3恒成立
wo 要过程``````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````gogo加油
人气：318 ℃ 时间：2020-04-08 12:24:16
解答
化 简 一 下
1 / 2 k x + 1 > 0
就 可 看 出 k = 0恒成立
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