如图四,函数y=kx(k≠0)与y=4/k的图像交与A、B两点,过A作AC⊥y轴于点C,连接BC,则△BOC的面积为
人气:458 ℃ 时间:2019-11-13 19:25:35
解答
直线y=kx与双曲线y=4/kx的交点为(2/k,2)和(-2/k,-2).
△BOC与△AOC面积相等,为2/k.
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