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If ABCD is a quadrilateral, then vec(BA)...

If ABCD is a quadrilateral, then `vec(BA) + vec(BC)+vec(CD) + vec(DA)=`

A

`2 vec(BA)`

B

`2 vec(AB)`

C

`2vec(AC)`

D

`2(BC)`

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The correct Answer is:
A
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OBJECTIVE RD SHARMA-ALGEBRA OF VECTORS-Chapter Test
  1. Vectors vec aa n d vec b are non-collinear. Find for what value of...

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  2. If the diagonals of a parallelogram are 3 hati + hatj -2hatk and hati ...

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  3. If ABCD is a quadrilateral, then vec(BA) + vec(BC)+vec(CD) + vec(DA)=

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  4. If the points with position vectors 60hati+3hatj, 40 hati-8hatj and a ...

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  5. If ABCDEF is a regualr hexagon, then vec(AC) + vec(AD) + vec(EA) + ve...

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  6. ABCDEF is a regular hexagon. Find the vector vec AB + vec AC + vec AD ...

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  7. If P, Q , R are the mid-points of the sides AB, BC and CA of Delta AB...

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  8. If G is the centroid of Delta ABC and G' is the centroid of Delta A'...

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  9. In a quadrilateral ABCD, vec(AB) + vec(DC) =

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  10. If ABCDE is a pentagon, then vec(AB) + vec(AE) + vec(BC) + vec(DC) +...

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  11. If ABCD is a parallelogram, then vec(AC) - vec(BD) =

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  12. In a Delta ABC, " if " vec(AB) = hati - 7hatj + hatk and vec(BC) = 3 ...

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  13. In a Delta ABC, if vec(AB) = 3 hati + 4 hatk, vec(AC) = 5 hati + 2 hat...

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  14. The position vectors of P and Q are respectively vec a and vec b . If ...

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  15. If the points whose position vectors are 2hati + hatj + hatk , 6hati -...

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  16. The ratio in which hati + 2 hatj + 3 hatk divides the join of -2hati ...

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  17. If OACB is a parallelogramwith vec(OC) = vec a and vec (AB) = vec b...

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  18. The position vectors of the points A, B, C are 2 hati + hatj - hatk , ...

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  19. If ABCDEF is a regular hexagon then vec(AD)+vec(EB)+vec(FC) equals :

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  20. If the points with position vectors 20 hati + p hatj , 5 hati - hat...

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