cot45°/(tan45°-sin60°)=?
来源:学生作业帮助网 编辑:六六作业网 时间:2025/02/02 22:53:21
cot45°/(tan45°-sin60°)=?cot45°/(tan45°-sin60°)=?cot45°/(tan45°-sin60°)=?cot45°/(tan45°-sin60°)=1/(1-
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]