練習題庫/gsat・難度 5高雄港雷達以雷達站為原點，向東、向北分別為 xxx 軸、yyy 軸正向。某船隻的極座標為 (13,θ)(13,θ)(13,θ)，且其直角坐標的 x=−5x=-5x=−5，船隻位於雷達站北方。下列何者正確？(A)(y,sinθ,tanθ)=(12,1213,125)(y,\sin θ,\tan θ)=(12,\frac{12}{13},\frac{12}{5})(y,sinθ,tanθ)=(12,1312,512)(B)(y,sinθ,tanθ)=(12,1213,−125)(y,\sin θ,\tan θ)=(12,\frac{12}{13},-\frac{12}{5})(y,sinθ,tanθ)=(12,1312,−512)(C)(y,sinθ,tanθ)=(−12,−1213,125)(y,\sin θ,\tan θ)=(-12,-\frac{12}{13},\frac{12}{5})(y,sinθ,tanθ)=(−12,−1312,512)(D)(y,sinθ,tanθ)=(12,−513,−512)(y,\sin θ,\tan θ)=(12,-\frac{5}{13},-\frac{5}{12})(y,sinθ,tanθ)=(12,−135,−125)(E)(y,sinθ,tanθ)=(12,12169,−125)(y,\sin θ,\tan θ)=(12,\frac{12}{169},-\frac{12}{5})(y,sinθ,tanθ)=(12,16912,−512)登入後即可作答並查看完整詳解（每日免費 5 題）。