Tolong dijawab sesuai pertanyaaan yaa,sekalian caranya
Penyelesaian:
tan a . sin a + cos a
= sin a/cos a . sin a + cos a
= sin^2 a/cos a + cos a
= sin^2 a/cos a + cos^2 a/cos a
= sin^2 a + cos^2 a / cos a
= 1/ cos a
= sec a
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Detil Jawaban
Kelas: 10
Mapel: Matematika
Bab: Trigonometri
Kode: 10.2.7
Kata Kunci: identitas trigonometri