Buktikan identitas trigonometri 3+5 sin² B = 8-5 cos² B
Matematika
Kalyubihadi
Pertanyaan
Buktikan identitas trigonometri
3+5 sin² B = 8-5 cos² B
3+5 sin² B = 8-5 cos² B
1 Jawaban
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1. Jawaban Robinn
3 + 5sin²b = 8 - 5cos²b
3 + 5sin²b = 8 - 5 (1 - sin²b)
3 + 5sin²b = 8 - 5 + 5sin²b
3 + 5sin²b = 3 + 5sin²b