高一数学求答案!
2个回答
2014-08-31
展开全部
f(x)=√3sin2x+cos2x
=2sin(2x+π/6)
所以T=2π/2=π
递增则2kπ-π/2<2x+π/6<2kπ+π/2
kπ-π/3<x<kπ+π/6
所以增区间是(kπ-π/3,kπ+π/6)
=2sin(2x+π/6)
所以T=2π/2=π
递增则2kπ-π/2<2x+π/6<2kπ+π/2
kπ-π/3<x<kπ+π/6
所以增区间是(kπ-π/3,kπ+π/6)
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