cot45°/(tan45°-sin60°)=?

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 08:44:25
cot45°/(tan45°-sin60°)=?
x)K/11=A<S83І{:mm /I`|ڿXH"ha iiE s u5 L5bmM |lZo݋.:_8N T YAy

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]