当x∈[0,2π]时,满足sinx≥-√3/2的x取值范围是注意,是负2分之根号3忘了补上,这是选择题A.[π/6,π/2]B.[0,2π/3]C.[π/6,5π/6]D.[0,2π/3]∪[5π/3,2π]
问题描述:
当x∈[0,2π]时,满足sinx≥-√3/2的x取值范围是
注意,是负2分之根号3
忘了补上,这是选择题
A.[π/6,π/2]
B.[0,2π/3]
C.[π/6,5π/6]
D.[0,2π/3]∪[5π/3,2π]
答
根据图像
易知
x∈[-π/6,4π/3]