Diketahui |a| = 4 dan |b| = 2. Jika cos a = 4/5 maka nilai a dikali b adalah.. By Admin ReiPosted on December 6, 2022 Diketahui |a| = 4 dan |b| = 2. Jika cos a = 4/5 maka nilai a dikali b adalah.. a.b=cos a.|a|.|b| a.b=(4/5)(4)(2) a.b=32/5
