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If veca=3i+j+2k, If the projection of v...

If `veca=3i+j+2k,`
If the projection of `veca` on another vector `vecb` is `sqrt14`, which among the following could be `vecb` ?
i+j+k
6i+2j+4k
3i-j+2k
2i+3j+k

A

i+j+k

B

6i+2j+4k

C

3i-j+2k

D

2i+3j+k

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MAXIMUM PUBLICATION-VECTOR ALGEBRA-EXAMPLE
  1. Find veca.vecb,vecatimesvecb and vecbtimesvecc using the vectors. ve...

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  2. If veca=3i+j+2k, FInd magnitude of vec a

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  3. If veca=3i+j+2k, If the projection of veca on another vector vecb is ...

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  4. If veca=3i+j+2k, If veca makes an angle 60° with a vector vecc, find...

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  5. The projection of the vector 2i+3j+2k on the vector i+j+k is a)frac(3...

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  6. Find the area of a parallelogram whose adjacent sides are the vector 2...

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  7. The angle between the vectors i+j and j+k is

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  8. If veca, vecb, vecc are unit vectors such that veca+vecb+vecc=0, fin...

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  9. If veca, vecb, vecc are unit vectors then, veca.veca=

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  10. Hence, show that veca.vecb+vecb.vecc+vecc.veca=(-3)/2 if veca+vecb+vec...

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  11. Let A(2,3),B(1,4),C(0,-2) and D(x,y) are vertices of a parallelogram A...

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  12. Let A(2,3),B(1,4),C(0,-2) and D(x,y) are vertices of a parallelogram A...

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  13. Find the position vector of a point R which divides the line joining t...

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  14. Find the position vector of a point R which divides the line joining t...

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  15. Choose the correct answer from the backet. If a unit vector hata makes...

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  16. Find a unit vector hata.

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  17. Write down a unit vector in XY plane, making an angle of 60° with the...

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  18. Let the vectors veca,vecb,vecc denotes the sides of a triangle ABC. ...

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  19. Find the projection of a vector i+3j+7k on the vector 7i-j+8k.

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  20. If veca and vecb are any two vectors, then vecatimesvecb is a) a ve...

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