tan(arcsin1/2-arctan根号3)= 3Q
tan(arcsin1/2-arctan根号3)= 3Q
tan[arctan(-根号3/3)] 和 arctan(tan3兀/4)
arctan(-2)+arctan(-3)=?
怎么解{arctan(-根号3/3)≤arctan(tanα)≤arctan根号3; 0≤α≤π
求下列各式的值:1)sin(arcsin1/4)2) cos[arc cos(-√2/2)] 3)tan(arc tan
arccos根号3/3等于arctan根号2/2么?
tan(arctan x + arctan p)=?
arccos(-根号3/2)=?,arcsin0=?,arctan(-根号3)=?
求导y=arctan(根号(1-3x))
arctan根号2是什么,
arcsin2分之根号3加arccos(负2分之根号三)加arctan(负一)=?急
tanα+tanβ+根号3tanα*tanβ=根号3 求 tan(α+β)=?