设w>0,若函数fx=2sinwx在[-π/3,π/4]上单调递增,则w的取值范围是

设w>0,若函数fx=2sinwx在[-π/3,π/4]上单调递增,则w的取值范围是
设w>0,若函数fx=2sinwx在[-π/3,π/4]上单调递增,则w的取值范围是

设w>0,若函数fx=2sinwx在[-π/3,π/4]上单调递增,则w的取值范围是
2kπ-π/2-π/2-π/2w=-π/3 ,w=2/3
π/2w=π/4,w=2
w的取值范围是[2/3,2]