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Let ABC be an acute scalene triangle, and O and H be its circumcentreand orthocentre respectively. Further let N be the midpoint of OH. The value of the vector sum vec(NA)+vec(NB)+vec(NC is |
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Answer» `vec(O)`(zero VECTOR) `(vec(O))=((vec(a)+vec(b)+vec(C))/(3)),H=((vec(a)+vec(b)+vec(c))/(2))` `vec(N)=(1)/(4)(veca+vec(b)+vec(c))` |
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