buktikan bahwa tan a + cot a / cosec a = sec a
Matematika
Benago1
Pertanyaan
buktikan bahwa tan a + cot a / cosec a = sec a
1 Jawaban
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1. Jawaban Anonyme
Bab Trigonometri
Matematika SMA Kelas X
(tan a + cot a)/cosec a
= (sin a/cos a + cos a/sin a) x 1/cosec a
= (sin² a + cos² a)/(sin a x cos a) x sin a
= 1/cos a
= sec a