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Prove that ( vec adot hat i)( vec axx ha...

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

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Prove that (vec a*hat i)(vec a xxhat i)+(vec a*j)(vec a xxhat j)+(vec a*hat k)(vec a xxhat k)=0

If vec a and vec b are non-zero and non-collinear vectors, then vec ax vec b=[ vec a vec b hat i] hat i+[ vec a vec b hat j] hat j+[ vec a vec b hat k] hat k vec adot vec b=( vec adot vec i)( vec adot hat i)( vec bdot hat j)+( vec adot hat j) ( vec bdot hat j) + ( vec adot hat k)( vec bdot hat k) If vec u= hat a-( hat adot hat b) hat b and hat v= hat ax hat b , then | vec v|=| vec u| If vec c= vec ax( vec ax vec b) , then vec cdot vec a=0

Prove that (vec a(vec b xxhat i)hat i+(vec avec b xxhat j)hat j+(vec avec b xxhat k)hat k=vec a xxvec b

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

Writhe the value of (vec adot hat i)hat i+(vec adot j)hat j+(vec adot k)hat k where vec a is any vector.

If vec a is any vector, then ( vec axx hat i)^2+( vec axx hat j)^2+( vec axx hat k)^2= vec a^2 b. 2 vec a ^2\ c. 3 vec a^2 d. 4 vec a^2

If vec a*hat hat i=vec a*(hat i+hat j)=vec a*(hat i+hat j+hat k)=1 then vec a=

Writhe a vector satisfying vec adot hat i=vec ahat i+hat j=vec ahat i+dot hat j+hat k=1

vec a = (hat i + hat j + hat k), vec a * vec b = 1 and vec a xxvec b = hat j-hat k. Then vec b is

Find the volume of the parallelepiped whose coterminous edges are represented by the vectors: vec a=2 hat i+3 hat j+4 hat k , vec b= hat i+2 hat j- hat k , vec c=3 hat i- hat j+2 hat k vec a=2 hat i+3 hat j+4 hat k , vec b= hat i+2 hat j- hat k , vec c=3 hat i- hat j-2 hat k vec a=11 hat i , vec b=2 hat j- hat k , vec c=13 hat k vec a= hat i+ hat j+ hat k , vec b= hat i- hat j+ hat k , vec c= hat i+2 hat j- hat k

ARIHANT MATHS-PRODUCT OF VECTORS-Exercise For Session 2
  1. Find | vec axx vec b| , if vec a= hat i-7 hat j+7 hat ka n d vec b=3 ...

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  2. Find the values of gamma and mu for which (2hati+6hatj+27hatk)xx(hati+...

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  3. If a=2hat(i)+3hat(j)-hat(k), b=-hat(i)+2hat(j)-4hat(k), c=hat(i)+hat(j...

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  4. Prove that ( vec adot hat i)( vec axx hat i)+( vec adotj)( vec axx hat...

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  5. If vecaxxvecb=veccxxvecd and vecaxxvecc=vecbxxvecd then show that veca...

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  6. If ( vec axx vec b)^2+( vec adot vec b)^2=144a n d| vec a|=4, then fin...

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  7. If |a|=2,|b|=7 and vec ax vec b=3 hat i+2 hat j+6 hat k , find the...

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  8. Let the vectors vec aa n d vec b be such that | vec a|=3| vec b|=(sqr...

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  9. If |veca|=sqrt(26), |vecb|=7 and |vecaxxvecb|=35, find veca.vecb

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  10. Find a unit vector perpendicular to the plane of two vectors a=hat(i)-...

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  11. Find a vector of magnitude 15, which is perpendicular to both the vect...

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  12. Let -> a= hat i+4 hat j+2 hat k , -> b=3 hat i-2 hat j+7 hat k and...

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  13. Let A,B and C be the unit vectors . Suppose that A.B=A.C =0 and the a...

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  14. Find the area of the triangle whose adjacent sides are determined by t...

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  15. Find the area of parallelogram whose adjacent sides are represented by...

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  16. What is the area of the parallelogram having diagonals 3hat(i) + hat(j...

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  17. A force F=2hat(i)+hat(j)-hat(k) acts at point A whose position vector...

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

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  19. Forces 2hat(i)+hat(j), 2hat(i)-3hat(j)+6hat(k) and hat(i)+2hat(j)-hat(...

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