Jawaban:
Sin 250° = Sin (180° + 70°) = -Sin 70°
Tan 210° = Tan (180° + 30°) = Tan 30° = 1√3
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Jawaban:
Sin 250° = Sin (180° + 70°) = -Sin 70°
Tan 210° = Tan (180° + 30°) = Tan 30° = 1√3