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If the vectors 3 hat i+m hat j+ hat k\ a...

If the vectors `3 hat i+m hat j+ hat k\ a n d\ 2 hat i- hat j-8 hat k` are orthogonal, find `mdot`

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If the vectors 3 hat i-2 hat j-4 hat k\ a n d\ 18 hat i-12 hat j-m hat k are parallel find the value of mdot

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RD SHARMA ENGLISH-SCALAR OR DOT PRODUCT-All Questions
  1. If vec a\ a n d\ vec b are two vectors such that vec adot vec b=6,\...

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  2. Find the cosine of the angle between the vectors 4 hat i-3 hat j+3 hat...

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

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  4. If the vectors 3 hat i-2 hat j-4 hat k\ a n d\ 18 hat i-12 hat j-m hat...

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  5. If vec a\ a n d\ vec b are vectors of equal magnitude, write the val...

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  6. If vec a\ a n d\ vec b are two vectors such that ( vec a+ vec b)dot(...

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  7. For any two vectors vec a\ a n d\ vec b write when | vec a+ vec b|=|...

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  8. For any two vectors vec a\ a n d\ vec b write then | vec a+ vec b|=|...

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  9. If vec a\ a n d\ vec b are two vectors of the same magnitude incline...

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  10. If vec adot vec adot=0\ a n d\ vec adot vec b=0 what can you conclud...

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  11. If vec b is a unit vector such that ( vec a+ vec b)dot ( (vec a- vec ...

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  12. If hat a ,\ hat b are unit vector such that\ hat a+ hat b is a unit...

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  13. If | vec a|=13 ,\ | vec b|=5\ a n d\ vec adot vec b=60 , t h e n find...

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  14. If vec a= hat i- hat j\ a n d\ vec b=- hat j+ hat k find the project...

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  15. For any two non zero vectors write the value of (| vec a+ vec b|^2+| v...

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  16. Write the the projections of vec r=3 hat i-4 hat j+12 hat k on the co...

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  17. Writhe the component of vec b along vec adot

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  18. Writhe the value of ( vec adot hat i) hat i+( vec adot hat j) hat j+( ...

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  19. Find the value of theta(0,pi//2) for which vectors vec a=(sintheta) ...

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

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