buktikan cos x + tan x sin x = swcan x?
Matematika
Khoirun23
Pertanyaan
buktikan cos x + tan x sin x = swcan x?
1 Jawaban
-
1. Jawaban angelkurniawan
a = samping
o = depan
h = miring
=a/h + (o/a x o/h)
= a/h + (o²/ah)
= a²/ah + o²/ah
= a² + o² / ah
= h² / ah
= hh / ah
= h / a = secx