Mathematics for IGCSE & O level - Vectors (Section 1 - No. 4)
If \(\vec{a} = 4\vec{b}\), what can you conclude about vectors \(\vec{a}\) and \(\vec{b}\)?
They are perpendicular.
They have the same direction.
They have opposite directions.
They have the same magnitude.
Explanation
Multiplying a vector by a scalar changes the magnitude. If the scalar is positive, the direction remains the same.
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