求函数y=3sin(2x﹣π/6)的单调区间周期最及取最大值和最小值时自变量拜托各位大神
问题描述:
求函数y=3sin(2x﹣π/6)的单调区间周期最及取最大值和最小值时自变量拜托各位大神
答
由题:函数在区间2Kπ-π/2≤2x-π/6≤2Kπ+π/2单调增、在区间2Kπ+π/2≤2x-π/6≤2Kπ+3π/2单调减、解得单调增区间为(kπ-π/6,kπ+π/3)单调减区间为(kπ+π/3,kπ+2π/3),周期T=2π/ω=2π/2=π,当x=kπ+π/3...