April 2019 1 223 Report
Buktikan Identitas Berikut dengan benar :

1 - tan^2 Ѳ
--------------- = cos^2 Ѳ - sin^2 Ѳ
1 + tan^2 Ѳ


1 1
------------ + ------------- = 2 csc^2 Ѳ
1 + cos Ѳ 1 - cos Ѳ
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