怎么解{arctan(-根号3/3)≤arctan(tanα)≤arctan根号3; 0≤α≤π

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怎么解{arctan(-根号3/3)≤arctan(tanα)≤arctan根号3;0≤α≤π怎么解{arctan(-根号3/3)≤arctan(tanα)≤arctan根号3;0≤α≤π怎么解{ar

怎么解{arctan(-根号3/3)≤arctan(tanα)≤arctan根号3; 0≤α≤π
怎么解{arctan(-根号3/3)≤arctan(tanα)≤arctan根号3; 0≤α≤π

怎么解{arctan(-根号3/3)≤arctan(tanα)≤arctan根号3; 0≤α≤π
aarctab递增
所以-√3/3