tan a + cot a = sec a cosec
Matematika
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Pertanyaan
tan a + cot a = sec a cosec
1 Jawaban
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1. Jawaban Anonyme
Bab Trigonometri
Matematika SMA Kelas X
identitas
tan a + cot a
= (sin a / cos a) + (cos a / sin a)
= (sin² a + cos² a) / (cos a . sin a)
= 1 / (cos a . sin a)
= (1/cos a) . (1/sin a)
= sec a . cosec a
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