Mathematics for IGCSE & O level - Vectors (Section 1 - No. 17)
If \(\vec{AB} = 3\vec{a}\) and \(\vec{BC} = 2\vec{a}\), what is the value of \(\vec{AC}\)?
\(\vec{a}\)
\(5\vec{a}\)
\(\frac{3}{2}\vec{a}\)
\(\frac{2}{3}\vec{a}\)
คำอธิบาย
AC = AB + BC = 3a + 2a = 5a