cos A.cotan A =CosecA-sinA
Matematika
Osamaalhusen
Pertanyaan
cos A.cotan A =CosecA-sinA
1 Jawaban
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1. Jawaban restymedicap4r008
[tex]cos A.cot A = cosec A - sin A[/tex]
[tex]cos A. \frac{1}{tan A} = \frac{1}{sin A} -sin A [/tex]
[tex]cos A. \frac{cos A}{sin A} = \frac{1}{sin A}-sin A [/tex]
[tex] cos^{2} A = sin A ( \frac{1}{sin A} - sin A) [/tex]
[tex]cos ^{2} A = 1 - sin^{2} A [/tex]