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If veca satisfies vec axx( hat i+2 hat ...

If `veca` satisfies ` vec axx( hat i+2 hat j+ hat k)= hat i- hat k ,` then ` vec a` is equal to a.`lambda hat i+(2lambda-1) hat j+lambda hat k ,lambda in R` b. `lambda hat i+(1-2lambda) hat j+lambda hat k ,lambda inR` c. `lambda hat i+(2lambda+1) hat j+lambda hat k ,lambda inR` d. `lambda hat i-(1+2lambda) hat j+lambda hat k ,lambda inR`

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CENGAGE ENGLISH-VECTOR ALGEBRA-All Questions
  1. If in a right-angled triangle A B C , the hypotenuse A B=p ,then ...

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

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  4. If vec rdot vec a= vec rdot vec b= vec rdot vec c=0,w h e r e vec a ,...

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

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  6. Vectors 3 vec a-5 vec b and 2 vec a+ vec b are mutually perpendicular....

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  7. If vectors vec a and vec b are two adjacent sides of a parallelogra...

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  8. The value of x for which the angle between vec a=2x^2 hat i+4x hat ...

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  9. Let vec a* vec b=0,w h e r e vec aa n d vec b are unit vectors and th...

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  10. A parallelogram is constructed on 3 vec a+ vec ba n d vec a-4 vec b...

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  11. Let the position vectors of the points Pa n dQ be 4 hat i+ hat j+lam...

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  12. If a \ a n d \ c are unit vectors and |b|=4 . The angel between aa n d...

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

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  14. Let vec a , vec b , a n d vec c be three non-coplanar vectors and ...

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  15. If vec a+2 vec b+3 vec c=0,t h e n vec axx vec b+ vec bxx vec c+ vec ...

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  16. If vec a \ a n d \ vec b are two non-collinear unit vector, and ...

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  17. The angles of triangle, two of whose sides are represented by vector...

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  18. vec a , vec b ,a n d vec c are unimodular and coplanar. A unit vector...

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  19. Vectors perpendicular to hat i- hat j- hat k and in the plane of hat...

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  20. If side vec A B of an equilateral trangle A B C lying in the x-y plan...

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