bentuk cosec x - cosx.cotx ekuivalen dengan

Question

Matematika Diposting : 2017-06-11 Diupdate : 2022-06-02 nabilzhafran205

Pertanyaan

Answer 1

cosec x - cosx.cotx
= (1/sin x) - (cos x . cos x/sin x)
= (1/sin x) - (cos²x/sin x)
= (1/sin x) - (1- sin²x/sin x)
= sin²x/sin x
= sin x

Answer 2

cosec x - cos x cot x
= 1/(sin x) - cos x . (cos x)/(sin x)
= (1 - cos^2 x)/(sin x)
= (sin^2 x)/(sin x)
= sin x

^ = pangkat