Problemsin(90°)\sin(90°)sin(90°)分步解答90°90°90° 是单位圆的最高点,即点 (0,1)(0, 1)(0,1)。正弦等于 y 坐标:sin(90°)=1\sin(90°) = 1sin(90°)=1 — 正弦的最大值。答案sin(90°)=1\sin(90°) = 1sin(90°)=1想解其他题?打开 sin-cos-tan 求解器 →相关例题/solve/trigonometry/sin-30-degrees/solve/trigonometry/sin-45-degrees