计算:(1)cos45°=sin45°=_____;(2)sin30°+cos60°+tan45°=_____;(3)sin60°/cos60°=_____;(4)tan60°-计算:(1)cos45°=sin45°=_____;(2)sin30°+cos60°+tan45°=_____;(3)sin60°/cos60°=_____;(4)tan60°-tan30°=_____;
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/19 09:09:12
![计算:(1)cos45°=sin45°=_____;(2)sin30°+cos60°+tan45°=_____;(3)sin60°/cos60°=_____;(4)tan60°-计算:(1)cos45°=sin45°=_____;(2)sin30°+cos60°+tan45°=_____;(3)sin60°/cos60°=_____;(4)tan60°-tan30°=_____;](/uploads/image/z/960842-2-2.jpg?t=%E8%AE%A1%E7%AE%97%3A%281%29cos45%C2%B0%3Dsin45%C2%B0%3D_____%3B%282%29sin30%C2%B0%2Bcos60%C2%B0%2Btan45%C2%B0%3D_____%3B%283%29sin60%C2%B0%2Fcos60%C2%B0%3D_____%3B%284%29tan60%C2%B0-%E8%AE%A1%E7%AE%97%3A%281%29cos45%C2%B0%3Dsin45%C2%B0%3D_____%3B%282%29sin30%C2%B0%2Bcos60%C2%B0%2Btan45%C2%B0%3D_____%3B%283%29sin60%C2%B0%2Fcos60%C2%B0%3D_____%3B%284%29tan60%C2%B0-tan30%C2%B0%3D_____%3B)
计算:(1)cos45°=sin45°=_____;(2)sin30°+cos60°+tan45°=_____;(3)sin60°/cos60°=_____;(4)tan60°-计算:(1)cos45°=sin45°=_____;(2)sin30°+cos60°+tan45°=_____;(3)sin60°/cos60°=_____;(4)tan60°-tan30°=_____;
计算:(1)cos45°=sin45°=_____;(2)sin30°+cos60°+tan45°=_____;(3)sin60°/cos60°=_____;(4)tan60°-
计算:
(1)cos45°=sin45°=_____;
(2)sin30°+cos60°+tan45°=_____;
(3)sin60°/cos60°=_____;
(4)tan60°-tan30°=_____;
计算:(1)cos45°=sin45°=_____;(2)sin30°+cos60°+tan45°=_____;(3)sin60°/cos60°=_____;(4)tan60°-计算:(1)cos45°=sin45°=_____;(2)sin30°+cos60°+tan45°=_____;(3)sin60°/cos60°=_____;(4)tan60°-tan30°=_____;
(1)cos45°=sin45°= √2/2
(2)sin30°+ cos60°+ tan45°= 2
(3)sin60°/cos60°= √3
(4)tan60°-tan30°= 2√3/3
1.cos45°=sin45°=√2 /2;
2.sin30°+cos60°+tan45°=2
3.sin60°/cos60°=√3
4.tan60°-tan30°=2√3 /3