buktikan identitas berikut
Matematika
ch01
Pertanyaan
buktikan identitas berikut
1 Jawaban
-
1. Jawaban bapakdr
(sin x + cos x) / (sin x - cos x)
------------------------------------------ รท sin x
= (sin x/sin x + cos x/sin x) / (sin x/sin x - cos x/sin x)
= (1 + cot x) / (1 - cot x)