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If `vecp=(vecbxxvecc)/([veca vecb vecc]),vecq=(veccxxveca)/([veca vecb vecc])` and `vecr=(vecaxxvecb)/([veca vecb vecc])`, where `[veca vecb vecc]!=0` then the value of `vecp*(veca+vecb+vecc)` is equal to:
A. |
0 |
B. |
3 |
C. |
-1 |
D. |
1 |
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