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- Besaran Vektor
|A| = 10 N
|B| = 20 N
α = 37° → sin α = 0,6 dan cos α = 0,8
perkalian titik
A · B = |A| |B·| cos α
= 10 · 20 · 0,8
= 160 N² ← jwb
perkalian silang
|A× B| = |A| |B| sin α
= 10 · 20 · 0,6
= 120 N², arah ⊥A dan ⊥B