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in Physics by (44.9k points)
The vector area of triangle whose sides are `veca,vecb,vecc` is
A. `(1)/(2)|vecbxxvecc+veccxxveca+vecaxxvecb|`
B. `(1)/(2)|vecbxxvecc+veccxxveca+vecb|`
C. `(1)/(3)|vecbxxvecc+veccxxveca+vecb|`
D. `(1)/(2)|-vecbxxvecc+veccxxveca+vecb|`

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