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Prove that ( vec a.hat i)( vec axx hat i...

Prove that `( vec a.hat i)( vec axx hat i)+( vec a.j)( vec axx hat j)+( vec a. hat k)( vec axx hat k)=0.`

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Prove that ( vec a.( vec bxx hat i)) hat i+( vec a.( vec bxx hat j)) hat j+( vec a.( vec bxx hat k)) hat k= vec axx vec b .

If hat ixx[( vec a- hat j)xx hat i]+ hat jxx[( vec a- hat k)xx hat j]+ hat kxx[( vec a- hat i)xx hat k]=0, then find vector vec adot .

Let vec aa n d vec b be mutually perpendicular unit vectors. Then for any arbitrary vec r , a. vec r=( vec rdot hat a) hat a+( vec rdot hat b) hat b+( vec rdot( hat axx hat b))( hat axx hat b) b. vec r=( vec rdot hat a)-( vec rdot hat b) hat b-( vec rdot( hat axx hat b))( hat axx hat b) c. vec r=( vec rdot hat a) hat a-( vec rdot hat b) hat b+( vec rdot( hat axx hat b))( hat axx hat b) none of these

If | vec a|=2, then find the value of | vec axx hat i|^2+| vec axx hat j|^2+| vec axx hat k|^2dot

If vec a.hat i= vec a.( hat i+ hat j)= vec a.( hat i+ hat j+ hat k) , then find the unit vector vec a

If aa n db are nonzero non-collinear vectors, then [ vec a vec b hat i] hat i+[ vec a vec b hat j] hat j+[ vec a vec b hat k] hat k is equal to a. vec axx vec b b. vec a+ vec b c. vec a- vec b d. vec bxx vec a

In each of the following show that the given vectors are coplanar: vec(a) = hat (i) + hat (j) - 6 hat (k) , vec(b) = hat (i) + 3 hat (j) + 4 hat (k) , vec(c) = 2 hat (i) + 5 hat (j) + 3 hat (k)

Find the scalar and vector components of vec(a) in the direction of vec(b) where vec(a) = 3 hat (i) + vec(j) + 3 hat (k) and vec(b) = hat (i) - hat (j) - hat (k)

Find the projection of vector (vec(b)+vec(c )) on vector vec(a) where vec(a) = hat (i) + 2 hat (j) + hat (k) , vec(b) = hat (i) + 3 hat (j) + hat (k) and vec c = hat (i) + hat (k)

Find the scalar and vector projection of vec(b) on a vec (a) where vec(a) = hat (i) + 2 hat (j) + 2 hat (k) and vec (b) = hat (j) + 2 hat (k)

CENGAGE PUBLICATION-VECTOR ALGEBRA-All Questions
  1. If vec a , vec ba n d vec c are three non coplanar vectors, then ( ...

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  2. Let vec a , vec b and vec c be three non-zero vectors such that ve...

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  3. Prove that ( vec a.hat i)( vec axx hat i)+( vec a.j)( vec axx hat j)+(...

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  4. If ( vec axx vec b)^2+( vec a.vec b)^2=144 and | vec a|=4, then find t...

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  5. A particle has an angular speed of 3 rad/s and the axis of rotation...

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  6. Find the moment of vec F about point (2, -1, 3), where force vec ...

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  7. Given | vec a|=| vec b|=1a n d| vec a+ vec b|=sqrt(3). If vec c is a ...

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  8. Let vec a=a1 hat i+a2 hat j+a3 hat k , vec b=b1 hat i+b2 hat j+b3 hat...

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  9. Statement 1: vec a , vec b ,a n d vec c are three mutually perpendi...

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  10. If the volume of a parallelepiped whose adjacent edges are vec a=2...

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  11. Prove that [ vec l vec m vec n][ vec a vec b vec c]=| (vec l. vec a, v...

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  12. Using dot product of vectors, prove that a parallelogram, whose dia...

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  13. If a+2b+3c=4, then find the least value (to the nearest integer) of ...

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  14. In any triangle A B C , prove the projection formulaa=b cosC+c cosB ...

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  15. Prove that an angle inscribed in a semi-circle is a right angle usi...

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  16. If vec a.hat i= vec a.( hat i+ hat j)= vec a.( hat i+ hat j+ hat k) ...

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  17. Prove by vector method that cos(A+B)=cos AcosB-sinAsinBdot

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  18. If the scalar projection of vector x hat i- hat j+ hat k on vector 2...

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  19. If vec a=x hat i+(x-1) hat j+ hat k and vec b=(x+1) hat i+ hat j+a ha...

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  20. A unit vector a makes an angle pi/ 4 with z-axis. If a + i + j is a un...

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