1 + cot² A= 1/sin²A= cosec²A
Matematika
trianaapriani
Pertanyaan
1 + cot² A= 1/sin²A= cosec²A
1 Jawaban
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1. Jawaban Anonyme
IDentitas Trigonometri
1 + cot² A
= 1 + (cos A/sin A)²
= (sin² A + cos² A)/sin² A
= 1/sin² A
= csc² A
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