cos 75derajat - cos 165 derajat=
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jihad34
Pertanyaan
cos 75derajat - cos 165 derajat=
1 Jawaban
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1. Jawaban Maesa3338
2sin (120°) sin (-45°)
2×√3/2×(-√2/2)
√3×√2/2
√6/2=1,22474