Question

Buktikan bahwa (1-sin^A)tan^ A= 1- cos ^ A

Answer 1

Buktikan bahwa:
(1 - sin² A) . tan² A = 1 - cos² A

Bukti:
Ruas kiri (←)
⇔ (1 - sin² A) tan² A
⇔ cos² A . 
⇔ sin² A
⇔ 1 - cos² A
Ruas kanan (→)

Jadi, terbukti bahwa (1 - sin² A) tan² A = 1 - cos² A


Semangat Pagi!!!

Answer 2

(1 - sin^2 A) tan^2 A = 1 - cos^2 A
cos^2 A . tan^2 A =......
cos^2 A . (sin^2 A / cos^2 A) =....
sin^2 A = ......
1 - cos^2-A = 1 - cos^2 A