The area of triangle bounded by vector \(\vec{P}\) and \(\vec{Q}\) is given by
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\(\frac{1}{2}\left| \vec{P}.\vec{Q} \right|\)
2
\(\frac{1}{2}\left| \vec{P}+\vec{Q} \right|\)
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\(\left| \vec{P}-\vec{Q} \right|\)
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\(\frac{1}{2}\left| \vec{P}\times \vec{Q} \right|\)
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