在两点坐标反算中,已知△XAB<0,△YAB>0,而tanα=|△YAB |/|△XAB |,求出α=13°36′24″,则αAB=()。
在两点坐标反算中,已知△XAB<0,△YAB>0,而tanα=|△YAB |/|△XAB |,求出α=13°36′24″,则αAB=()。
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填空题在两点坐标反算中,已知△XAB<0,△YAB>0,而tanα=|△YAB |/|△XAB |,求出α=13°36′24″,则αAB=()。