y=sin(2x+π/3)
周期T=π最大值1,最小值-1,
增区间【kπ-5π/12,kπ+π/12】
减区间【kπ+π/12,kπ+7π/12】k∈Z
y=2sin(2x+π/6)-2
周期T=π最大值0,最小值-4,
增区间【kπ-π/3,kπ+π/6】
减区间【kπ+π/6,kπ+2π/3】k∈Z
y=sin(π/3-2x)
周期T=π最大值1,最小值-1,
减区间【kπ-π/12,kπ+5π/12】
增区间【kπ+5π/12,kπ+11π/12】k∈Z
y=tan(π/3-2x)
周期T=π/2无最值,
减区间(kπ/2-π/12,kπ/2+5π/12)k∈Z