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Vectors vec a\ a n d\ vec b are such t...

Vectors ` vec a\ a n d\ vec b` are such that `| vec a|=3,\ | vec b|=2/3a n d\ ( vec axx vec b)` is a unit vector. Write the angle between ` vec a\ a n d\ vec bdot`

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RD SHARMA ENGLISH-SCALAR OR DOT PRODUCT-All Questions
  1. Write the value of lambda so that the vector vec a=2 hat i+lambda hat...

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  2. Write the projection of vec b+ vec c\ on\ vec a , when vec a=2 hat ...

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  3. Vectors vec a\ a n d\ vec b are such that | vec a|=3,\ | vec b|=2/3a...

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  4. If vec a\ a n d\ vec b are unit vectors such that vec axx vec b is ...

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  5. The vector vec a\ a n d\ vec b satisfy the equation 2 vec a+ vec b= ...

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  6. If vec(a) . hat(i)= vec(a).(hat(i)+ hat(j)) = vec(a). ( hat(i) + hat(j...

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  7. If vec a+ vec b+ vec c= vec0,\ vec|a|=3,\ | vec b|=5\ a n d\ | vec c...

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  8. If vec a\ a n d\ vec b be two unit vectors and theta is the angle be...

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  9. The vector cosalpha\ cosbeta hat i+cosalpha\ s inbeta hat j+sinalpha h...

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  10. If the position vectors of P\ a n d\ Q are hat i+3 hat j-7 hat k\ a n...

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  11. If vec a\ a n d\ vec b are unit vectors, then which of the following...

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  12. If the vectors hat(i) - 2x hat(j) + 3 y hat(k) and hat(i) +2x hat(j) ...

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  13. The vector component of vec b perpendicular to vec a is a.( vec bd...

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  14. The length of the longer diagonal of the parallelogram constructed o...

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  15. If vec(a) is a non zero vector of magnitude 'a' and lambda a non zero ...

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  16. If theta is the angle between two vectors vec(a) and vec(b), then vec(...

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

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  18. If vec a ,\ vec b ,\ vec c are any time mutually perpendicular vect...

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  19. If the vectors 3 hat i+lambda hat j+ hat k\ a n d\ 2 hat i- hat j+8 ha...

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  20. The projection of the vector hat i+ hat j+ hat k along the vector ...

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