使tanx大于等于cotx成立的一个区间是A,[0,π/4] B,(0,π/4] C,[π/4,π/2] D,{π/4,π/2]

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使tanx大于等于cotx成立的一个区间是A,[0,π/4] B,(0,π/4] C,[π/4,π/2] D,{π/4,π/2]
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使tanx大于等于cotx成立的一个区间是A,[0,π/4] B,(0,π/4] C,[π/4,π/2] D,{π/4,π/2]
使tanx大于等于cotx成立的一个区间是
A,[0,π/4] B,(0,π/4] C,[π/4,π/2] D,{π/4,π/2]

使tanx大于等于cotx成立的一个区间是A,[0,π/4] B,(0,π/4] C,[π/4,π/2] D,{π/4,π/2]
D

D,{π/4,π/2]