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When can you say that two vectors vec(A)...

When can you say that two vectors `vec(A) and vec(B)` are (a) parallel and (b) perpendicular .

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To determine when two vectors \(\vec{A}\) and \(\vec{B}\) are parallel or perpendicular, we can analyze their relationships using vector operations. ### Step-by-Step Solution: 1. **Understanding Parallel Vectors**: - Two vectors \(\vec{A}\) and \(\vec{B}\) are said to be parallel if they point in the same direction or in exactly opposite directions. - Mathematically, this can be expressed as: \[ ...
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