Nilai sec² a - sin² a . sec² a =
Matematika
kinantyajeng1
Pertanyaan
Nilai sec² a - sin² a . sec² a =
1 Jawaban
-
1. Jawaban arsetpopeye
sec^2 a - sin^2 a . sec^2 a
= sec^2 a (1 - sin^2 a)
= 1/(cos^2 a) . (cos^2 a)
= 1
^ = pangkat