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Let a=2i−j+k , b=i+2j−k and c=i+j−2k be...

Let `a=2i−j+k` , `b=i+2j−k` and `c=i+j−2k` be three vectors. A vector r in the plane of b and c whose projection on a is of magnitude `sqrt(2/3)` ​ ​ is

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Let vec a=2 hat i- hat j+ hat k , vec b= hat i+2 hat j= hat ka n d vec c= hat i+ hat j-2 hat k be three vectors. A vector in the plane of vec ba n d vec c , whose projection on vec a is of magnitude sqrt(2//3) , is a. 2 hat i+3 hat j-3 hat k b. 2 hat i-3 hat j+3 hat k c. -2 hat i- hat j+5 hat k d. 2 hat i+ hat j+5 hat k

Let vec a= hat i+ hat j+ hat k , vec b= hat i- hat j+ hat ka n d vec c= hat i- hat j- hat k be three vectors. A vector vec v in the plane of vec a a n d vec b , whose projection on vec c is 1/(sqrt(3)) is given by a. hat i-3 hat j+3 hat k b. -3 hat i-3 hat j+3 hat k c. 3 hat i- hat j+3 hat k d. hat i+3 hat j-3 hat k

Let veca = 2i + j+k, vecb = i+ 2j -k and a unit vector vecc be coplanar. If vecc is pependicular to veca .Find vecc .

Find the projection of vector hat i+3 hat j+7 hat k on the vector 7 hat i- hat j+8 hat kdot

Let vec a=2 hati+hat j+ hat k , vec b=hat i+2hat j- hatk and a unit vector vec c be coplanar. If vec c is perpendicular to vec a , then vec c is a. 1/(sqrt(2))(-hat j+hat k) b. 1/(sqrt(3))(-hat i-hat j-hat k)"" c. 1/(sqrt(5))(-hat k-2 hat j) d. 1/(sqrt(3))(hat i-hat j- hat k)

Find a vector of magnitude 14 in the direction of the vector -3hat i+6 hat j-2 hat k .

Find the unit vector perpendicular to the plane vec r.(2 hat i+ hat j+2 hat k)=5.

Vectors vec a=-4 hat i+3 hat k ; vec b=14 hat i+2 hat j-5 hat k are laid off from one point. Vector hat d , which is being laid of from the same point dividing the angle between vectors vec aa n d vec b in equal halves and having the magnitude sqrt(6), is a. hat i+ hat j+2 hat k b. hat i- hat j+2 hat k c. hat i+ hat j-2 hat k d. 2 hat i- hat j-2 hat k

find the projection of the vector vec a=2hat i+3 hat j+2 hat k , on the vector vec b=hati+2hatj+hat k

If vec a=7 hat i-4 hat j-4 hat k and vec b=-2 hat i- hat j+2 hat k , determine vector vec c along the internal bisector of the angle between of the angle between vectors vec a and vec b such that | vec c| =5sqrt(6)

CENGAGE PUBLICATION-VECTOR ALGEBRA-All Questions
  1. Column I, Column II If | vec a+ vec b|=| vec a+2 vec b| , then angel b...

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  2. If vectors vec A=2 hat i+3 hat j+4 hat k , vec B= hat i+ hat j+5 hat ...

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  3. Let a=2i−j+k , b=i+2j−k and c=i+j−2k be three vectors. A vector r in ...

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  4. Vectors vec Aa n d vec B satisfying the vector equation vec A+ v...

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  5. if vecalpha||( vecbetaxx vecgamma) , then ( vecalphaxxbeta).(vecalpha...

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  6. Let vecalpha=a hat i+b hat j+c hat k , vecbeta=b hat i+c hat j+a hat ...

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  7. a1, a2, a3, in R-{0} and a1+a2cos2x+a3sin^2x=0 for all x in R , then

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  8. If P is any arbitrary point on the circumcircle of the equilateral t...

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  9. Let vec aa n d vec b be two non-zero perpendicular vectors. A vecrt...

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  10. If vec aa n d vec b are two vectors and angle between them is thet...

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  11. Let vec r be a unit vector satisfying vec rxx vec a= vec b ,w h e ...

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  12. If vector vec b=(t a nalpha,-1, 2sqrt(sinalpha//2))a n d vec c=(t a n...

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  13. Let vec a , vec b ,a n d vec c be non-zero vectors and vec V1= vec a...

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  14. Let vec a=2 hat i- hat j+ hat k , vec b= hat i+2 hat j= hat ka n d ve...

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  15. Let vec P R=3 hat i+ hat j-2 hat ka n d vec S Q= hat i-3 hat j-4 hat ...

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  16. If in a right-angled triangle A B C , the hypotenuse A B=p ,then ...

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  17. If vec a=( hat i+ hat j+ hat k), vec a. vec b=1a n d vec axx vec b= h...

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  18. If veca satisfies vec axx( hat i+2 hat j+ hat k)= hat i- hat k , then...

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  19. If vec r . vec a= vec r . vec b= vec r . vec c=0,w h e r e vec a , ve...

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  20. The unit vector orthogonal to vector -hat i+ hat j+2 hat k and maki...

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