作业帮sin10°cos35°+sin80°sin35°=?
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/16 06:00:56
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sin10°cos35°+sin80°sin35°=?
sin10°cos35°+sin80°sin35°=?
sin10°cos35°+sin80°sin35°=?
sin10°cos35°+sin80°sin35°
=sin10°cos35°+cos10°sin35°
=sin(10+35)°
=√2/2
cos80cos35+cos10cos55=sin10cos35+cos10sin35=sin45=根号2/2 cos80cos35+cos10cos55 =cos80cos35+sin80sin35 =cos(80-35) =cos45 =√2/
sin10°cos35°+sin80°sin35°=?
sin80°cos35°-cos80°sin35°=?
cos80°cos35°+sin80°sin35°
1/sin10°-√3/sin80°
sin10°cos35°+cos10°cos55°=
sin10°乘以sin40°+sin50°乘以sin80°
求值：sin10°sin50°sin70°sin80°
sin10°cos45°+sin80°cos55°
(2cos20°-sin10°)/sin80°化简求值
1/sin10°-根号3/sin80°的值为
1/sin10°-根号3/sin80°的值为
求值：1/sin10°-根号3/sin80°
1/sin10°-根号3/sin80°=
求值:1/sin10°-√3/sin80°
1/sin10°— √3/sin80°
cos80°cos35°+sin80°cos55°的值是
求值[2sin50°+sin10°（1+√3tan10°）]*√2（sin80°）*（sin80°）
[2sin50°+sin10°（1+√3tan10°）]*√2（sin80°)*(sin80度)