Jawab:
Penjelasan dengan langkah-langkah:
Jawab: C
Identitas Trigonometri :
Sin²A + Cos²A = 1
Maka, Cos² A = 1 - Sin²A
Sin² A = 1 - Cos² A
Tan²A = Sin²A / Cos²A
Soal
= (1 - sin² A) · tan² A
= Cos²A . Sin²A / Cos² A
= Sin²A
= 1 - Cos²A
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Jawab:
Penjelasan dengan langkah-langkah:
Jawab: C
Penjelasan dengan langkah-langkah:
Identitas Trigonometri :
Sin²A + Cos²A = 1
Maka, Cos² A = 1 - Sin²A
Sin² A = 1 - Cos² A
Tan²A = Sin²A / Cos²A
Soal
= (1 - sin² A) · tan² A
= Cos²A . Sin²A / Cos² A
= Sin²A
= 1 - Cos²A