Question

Buktikan identitas trigonometri tan alfa sin alfa + cos alfa = sec alfa

Answer 1

=sin[5t^32√alfa]:cos[9,9r√5.10^2

Answer 2

Alfa kutulisnya x ya...
tan x sin x + cos x = sec x
sin x/cos x × sin x + cos x = sin²x / cos x + cos x
=1-cos²x / cos x + cos x = 1/cos x - cos²x/cos x + cos x
= 1/cos x - cos x + cos x = 1/cos x = sec x

tan x = sin x/cos x
sin²x = 1-cos²x
sec x = 1/cos x