Question

函数y=2sin（3x+3π/4）的值域为_____,周期为_____,单调递增区间为________.单调递减区间__

Answer 1

函数y=2sin（3x+3π/4）的值域为_[-2,2]____,周期为_2π/3____,单调递增区间为

(2kπ/3-5π/12,2kπ/3-π/12).单调递减区间(2kπ/3+7π/12,2kπ/3+11π/12)________,对称轴方程为_x=kπ/3-π/12_______,对称中心为_(kπ/3-π/4,0)______

若函数y=2sin（kx+π/3）有一条对称轴为x=π/6,且0＜x＜2π,k的值是_(n+1)(n为任意整数)____