Nilai 2 cos 30°+2 sin 300°-cos 180°
Matematika
Mamatbrow
Pertanyaan
Nilai 2 cos 30°+2 sin 300°-cos 180°
1 Jawaban
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1. Jawaban riziq25
2 sin(270+30) - (-1) + 2(√3/2)
= 2 (-cos 30) + 1 + √3
= 2 (-√3/2) + 1 + √3
= -√3 + 1 + √3
= 1