√5t²-2t+2是怎么得出这个√5(t-1/5)²+9/5
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 02:02:20
![√5t²-2t+2是怎么得出这个√5(t-1/5)²+9/5](/uploads/image/z/12985695-63-5.jpg?t=%E2%88%9A5t%26%23178%3B-2t%2B2%E6%98%AF%E6%80%8E%E4%B9%88%E5%BE%97%E5%87%BA%E8%BF%99%E4%B8%AA%E2%88%9A5%28t-1%2F5%29%26%23178%3B%2B9%2F5)
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√5t²-2t+2是怎么得出这个√5(t-1/5)²+9/5
√5t²-2t+2是怎么得出这个√5(t-1/5)²+9/5
√5t²-2t+2是怎么得出这个√5(t-1/5)²+9/5
明显答案有问题,配方可知:原式=√5(t^2-(2/√5)t+((1/√5)^2)-1/5)+2=√5(t-(1/√5))^2-
√5/5+2