(4sina-2cosa)/(5cosa+3sina)=6/11.则tana

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/11 23:48:17
(4sina-2cosa)/(5cosa+3sina)=6/11.则tana

(4sina-2cosa)/(5cosa+3sina)=6/11.则tana
(4sina-2cosa)/(5cosa+3sina)=6/11.则tana

(4sina-2cosa)/(5cosa+3sina)=6/11.则tana
(4sina-2cosa)/(5cosa+3sina)=6/11
11(4sina-2cosa)=6(5cosa+3sina)
44sina-22cosa=30cosa+18sina
sinθ=2cosθ
tana=sina/cosa=2