(SECα + 1)( SECα - 1)(CSCα + 1)(1 - SINα)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/18 05:55:21
(SECα+1)(SECα-1)(CSCα+1)(1-SINα)(SECα+1)(SECα-1)(CSCα+1)(1-SINα)(SECα+1)(SECα-1)(CSCα+1)(1-SINα)(SEC

(SECα + 1)( SECα - 1)(CSCα + 1)(1 - SINα)
(SECα + 1)( SECα - 1)(CSCα + 1)(1 - SINα)

(SECα + 1)( SECα - 1)(CSCα + 1)(1 - SINα)
(SECα + 1)( SECα - 1)(CSCα + 1)(1 - SINα)
[(SECα + 1)( SECα - 1)][(CSCα + 1)(1 - SINα)]
=[(TANα)^2]*[(COSα)^2/SINα]
=SINα