August 2018 1 31 Report
1) hitunglah nilai dari (sin 30° ₊ cos 60°) x (sin 60°₊ cos 30°) adalah...
2) hitunglah nilai dari (cos 30° x tg 30°) - (sin 60° + cos 30° adalah...
3) diketahui sin a° = 4/5, dengan 90<a<180°, maka nilai cos a° =
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