作业帮(cot30°-√3)(cos5°+sin5°)(cos5°-sin5°)求值
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 21:58:02
(cot30°-√3)(cos5°+sin5°)(cos5°-sin5°)求值
(cot30°-√3)(cos5°+sin5°)(cos5°-sin5°)
求值
(cot30°-√3)(cos5°+sin5°)(cos5°-sin5°)求值
0
(cot30°-√3)(cos5°+sin5°)已经等于0了
cot30°=√3;
cot30°-√3=0;
故原式=0；