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For any two vec aa n d vec b ,( vec axx...

For any two ` vec aa n d vec b ,( vec axx hat i).( vec bxx hat i)+( vec axx hat j).( vec bxx hat j)+( vec axx hat k).( vec bxx hat k)` is always equal to a. ` vec a.vec b` b. `2 vec a.vec b` c. zero d. none of these

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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.

Prove that hat ixx( vec axx hat i) +hat jxx( vec axx hat j)+ hat kxx( vec axx hat k)=2 vec adot

If vec a is any vector, then ( vec axx hat i)^2+( vec axx hat j)^2+( vec axx hat k)^2=

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 .

For any vector vec a , prove that | vec axx hat i|^2+| vec axx hat j|^2+| vec axx hat k|^2=2| vec a|^2

Find vec a +vec b if vec a = hat i - hat j and vec b =2 hat i

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 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 c dot vec a=0

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

Find the projection of vec a on vec b , if vec a . vec b =8 and vec b=2 hat i + 6 hat j + 3 hat k .

CENGAGE ENGLISH-VECTOR ALGEBRA-All Questions
  1. Let vectors vec a , vec b , vec c ,a n d vec d be such that ( vec ax...

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  2. The number of vectors of unit length perpendicular to vectors vec ...

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  3. For any two vec aa n d vec b ,( vec axx hat i).( vec bxx hat i)+( vec...

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  4. Let vecf(t)=[t] hat i+(t-[t]) hat j+[t+1] hat k , w h e r e[dot] deno...

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  5. If vec a is parallel to vec bxx vec c , then ( vec axx vec b)dot( ve...

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  6. The three vectors hat i+hat j,hat j+hat k, hat k+hat i taken two at a ...

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  7. If vec d= vec axx vec b+ vec bxx vec c+ vec cxx vec a is non-zero ve...

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  8. If |a|=2a n d|b|=3 and adotb=0,t h e n(axx(axx(axx(axxb)))) is equal t...

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  9. If the two diagonals of one its faces are 6 hat i+6 hat ka n d4 hat ...

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  10. The volume of a tetrahedron formed by the coterminous edges vec a ...

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  11. If vec a , vec b , and vec c are three mutually orthogonal unit vector...

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  12. Vector vec c is perpendicular to vectors vec a=(2,-3,1)a n d vec...

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  13. Given vec a=x hat i+y hat j+2 hat k , vec b= hat i- hat j+ hat k , ve...

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  14. vec aa n d vec b are two unit vectors that are mutually perpendicu...

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  15. If vec ra n d vec s are non-zero constant vectors and the scalar ...

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  16. The scalar vec Adot ( ( vec B+ vec C)xx( vec A+ vec B+ vec C)) equal...

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  17. The volume of he parallelepiped whose sides are given by vec O A=2i...

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  18. For non-zero vectors vec a , vec b ,a n d vec c ,|( vec axx vec b)dot...

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  19. For three vectors vec u , vec va n d vec w which of the following ex...

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  20. Let vec A be a vector parallel to the line of intersection of pla...

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