函数y=-2sin(x/2-π/4)+3的定义域
函数y=-2sin(x/2-π/4)+3的定义域
1,函数y=-2sin(x/2-π/4)+3的定义域__________值域______________最小正周期是________单调递减区间__________
单调递增区间_________
2,函数y=ctg(2x+π/3)的定义域__________值域__________最小正周期___________
3,函数y=-3cos(3x-π/4)+1的最小正周期__________当x=__________时,y最小=__________,当x=____时,y最大_________
4,函数y=4tg(3x-π/4)+3定义域_________值域__________最小正周期___________
5,判断奇偶性:y=x^2cosx是_______函数,y=x+3sinx-2tgx是________函数,y=xsinx+tgx^2是________函数