When is the sum of two non zero vectors is zero ?

Explanation

To determine when the sum of two non-zero vectors is zero, we can follow these steps:

### Step 1: Understanding Vector Addition
The sum of two vectors **A** and **B** is given by the equation:
\[ \mathbf{A} + \mathbf{B} = \mathbf{0} \]
This means that the resultant vector is the zero vector.

### Step 2: Conditions for the Sum to be Zero
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