Jawabanmu

2014-05-19T21:01:31+07:00
Cos 330° x (tan (-315°) - sin(210°)) x cotg 330°
= (1/2 √3) × (1 - (-1/2)) × (-√3)
=
(1/2 √3) × (3/2) × (-√3)
= -9/4

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