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Square of Sum of Two Vectors
$$|\vec a+\vec b|^2=|\vec a|^2+|\vec b|^2+2\vec a\cdot\vec b$$
Usage
- Used to calculate the magnitude of a vector sum without explicitly finding the angle.
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Square of Sum of Two Vectors
$$|\vec a+\vec b|^2=|\vec a|^2+|\vec b|^2+2\vec a\cdot\vec b$$
Usage
- Used to calculate the magnitude of a vector sum without explicitly finding the angle.
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