Mathematics for IGCSE & O level - Vectors (Section 1 - No. 40)
Given that \(\vec{p} = 2\vec{a}\) and \(\vec{q} = \vec{a} + \vec{b}\), which of the following correctly describes \(\vec{p} - \vec{q}\)?
\(\vec{a} - \vec{b}\)
\(\vec{a} + \vec{b}\)
\(3\vec{a} + \vec{b}\)
\( \vec{b} - \vec{a} \)
คำอธิบาย
p - q = 2a - (a + b) = a - b