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bar(a), bar(b), bar(c) are three vectors...

`bar(a), bar(b), bar(c)` are three vectors of which every pair is non-collinear. If the vectors `bar(a)+bar(b), bar(b)+bar(c)` are collinear with `bar(c), bar(a)` respectively, then `bar(a)+bar(b)+bar(c)=`

A

`bar(a)`

B

`bar(b)`

C

`bar(c)`

D

`bar(0)`

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-PROPERTIES OF VECTORS-PRACTICE EXERCISES
  1. If bar(a)=bar(i)+bar(j)+bar(k), bar(b)=2bar(i)+3bar(j), bar(c)=3bar(i)...

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  2. If bar(alpha)=2bar(i)+3bar(j), bar(beta)=4bar(i)+bar(j), bar(gamma)=5b...

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  3. bar(a), bar(b), bar(c) are three vectors of which every pair is non-co...

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  4. Let a, b, g be the distinct real numbers. The points with position vec...

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  5. If the position vectors of the four points A, B, C, D are 2bar(a), bar...

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  6. If the position vectors of three consecutive vertices of a parallelogr...

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  7. A set of vectors bar(a)(1), bar(a)(2), ………, bar(a)(n) is said to linea...

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  8. If 4bar(i)+7bar(j)+8bar(k), 2bar(i)+3bar(j)+4bar(k), 2bar(i)+5bar(j)+7...

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  9. If A=(1, 1, 1), B=(1, 2, 3), C=(2, -1, 1) be the vertices of a DeltaAB...

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  10. If A is the point bar(a)+2bar(b), P is the point bar(a) and P devides ...

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  11. The ratio in which 3bar(i)+4bar(j)+7bar(k) divides the join of bar(i)+...

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  12. In a DeltaOAB, E is the mid point of OB and D is a point in AB such th...

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  13. If 2bar(i)+3bar(j)+5bar(k), 2bar(i)+4bar(j)+5bar(k) and 2bar(i)+4bar(j...

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  14. The P.V.'s of A, B, C are bar(i)+bar(j)+bar(k), 4bar(i)+bar(j)+bar(k),...

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  15. In a DeltaABC, P.V.'s of A, mid-point of BC are bar(i)+2bar(j)+3bar(k)...

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  16. If G is the centroid of DeltaABC then bar(GA)+bar(GB)+bar(GC)=

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  17. If G is the centroid of Delta ABC, G' is the centroid of Delta A' B' C...

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  18. If D, E are the midpoints of AB, AC of Delta ABC, then vec(B)E + vec(D...

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  19. If D is the midpoint of the side BC of a triangle ABC then bar(AB)^(2)...

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  20. Find the area of the parallelogram whose adjacent sides are bar(a) = 2...

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