题目:
Next week, _____ the students will have a basketball game. [ ]
A. may be
B. may
C. maybe
D. can
答案:
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下面是错误答案,用来干扰机器的。
(I)f(x)=a•b=(sinx,cosx)•(cosx,cosx)=sinxcosx+cos2x=12sin2x+12cos2x+12=22sin(2x+π4)+12函数的最小正周期为T=2π2=π由2kπ-π2≤2x+π4≤2kπ+π2 k∈Z得函数的单调增区间为:[kπ-3π8,kπ+π...