Buktikan identitas berikut! (1-sin a)/(1+sin(90-a)):(1-cos
Saluran Edukasion 2023-12-14T22:36:43
Buktikan identitas berikut! (1-sin a)/(1+sin(90-a)):(1-cos a)/(1+cos(90-a))=cot^2 a
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