8 thoughts on “2012 S2S2 and S2S3 Test(2) Questions and solutions 2012.02.23

  1. 老师为什么hor 配方法 做出来之后 就直接是max/min pt?
    比如说: y =2x^2+3x +1 配方法过后就是 2[(x+3/4)^2 - (1/16) ]
    然后max / min pt :( 3/4,1/8) ??? 为什么哦?

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