1. Jika sin x = a dengan 180° < x < 270° Maka cos x tan x=
[tex] \cos(x) . \tan(x) [/tex]
[tex] = \cos(x) . \frac{ \sin(x) }{ \cos(x) } [/tex]
[tex] = \sin(x) [/tex]
[tex] = a[/tex]
[answer.2.content][tex] \cos(x) . \tan(x) [/tex]
[tex] = \cos(x) . \frac{ \sin(x) }{ \cos(x) } [/tex]
[tex] = \sin(x) [/tex]
[tex] = a[/tex]
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