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if a,b,c are vectors. r.a=r.b=r.c=1/2 for some nonzero 'r' vector,then the area of triangle formed by vectors a,b,c is ? |
| Answer» if a,b,c are vectors. r.a=r.b=r.c=1/2 for some nonzero 'r' vector,then the area of triangle formed by vectors a,b,c is ? | |