根号（1-sinA的平方）=根号（cosA的平方）
=|cosA|太给力了，你的回答完美解决了我的问题！
猜你喜欢
- 1双星系统中,质量,轨道半径,向心力都有什么关系?
- 2找规律4.3.11.9.18.27.25
- 3某可燃物4.6g在足量氧气充分燃烧 生成8.8g二氧化碳和5.4g水
- 4We do our homework in the evening.特殊疑问句,对in the evening进行提问,本人水平不高,
- 5科学家是不是发明家?
- 6x^2(dy/dx)=xy-2y^2求通解
- 7翻译：Are you sure that you are giving one English word without any spelling-mistake?
- 8these first planes were very s___
- 9石灰水的配制
- 10The mother found him a celver boy改写同义句