已知函数,. (1)求函数的最小正周期和单调递增区间; (2)求函数在

已知函数

(1)求函数的最小正周期和单调递增区间;

(2)求函数在区间上的最小值和最大值,并求出取得最值时的值.

答案

解:1)因为,所以函数的最小正周期为

    ,得,故函数的递调递增区间为);

   (2)因为在区间上为增函数,在区间上为减函数,又

故函数在区间上的最大值为,此时;最小值为,此时

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