cot45°/(tan45°-sin60°)=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 03:48:56
![cot45°/(tan45°-sin60°)=?](/uploads/image/z/3700611-27-1.jpg?t=cot45%C2%B0%2F%EF%BC%88tan45%C2%B0-sin60%C2%B0%EF%BC%89%3D%3F)
cot45°/(tan45°-sin60°)=?
cot45°/(tan45°-sin60°)=?
cot45°/(tan45°-sin60°)=?
cot45°/(tan45°-sin60°)
=1/(1-根号3/2)
=2/(2-根号3)
=2(2+根号3)
1/[1-(3^0.5)/2]=4*[1+(3^0.5)/2]
直接代入1/([1- 3^(1/2)/2]