Bantuin dongg nomor 18 pke caranya

VEKTOR
• operasi vektor

18][ perkalian silang
|a| = 4 satuan
|b| = 5 satuan
α = 37° → sin α = 3/5
|a × b| = __?

BESAR hasil kali silang (cross product) antara 2 vektor
|a × b| = |a| |b| sin α
|a × b| = (4 satuan) (5 satuan) • 3/5
|a × b| = 12 satuan ² ← jwb

ARAH keluar bidang gambar