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Find the angle between two vectors v...

Find the angle between two vectors ` vec a\ a n d\ vec b` having the same length `sqrt(2)` and their scalar product is -1.

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RD SHARMA ENGLISH-SCALAR OR DOT PRODUCT-All Questions
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  7. If vec a=5 hat i- hat j-3 hat k ,\ a n d\ vec b= hat i+3 hat j-5 hat...

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

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  9. For any vector vec a\ a n d\ vec b prove that | vec a+ vec b|lt=| ve...

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  10. For any two vectors vec a and vec b prove that ( veca dot vecb)^2le|...

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  11. If vec a ,\ vec b ,\ are two vectors such that | vec a+ vec b|=| ve...

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  12. The scalar product of the vector vec a= hat i+ hat j+ hat k with a un...

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  13. If vec a ,\ vec b ,\ vec c are three vectors such that vec adot ve...

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  14. Show that the vector 2 hat i- hat j+ hat k ,\ hat i-3 hat j-5 hat k ,...

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  15. Show that the points A, B, C with position vectors 2 hat i- hat j+ ...

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  16. If with reference to a right handed system of mutually perpendicula...

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  17. Find the value of x for which the angle between the vectors vec a=2x^...

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  18. If l ,\ m ,\ n are scalars and vec a ,\ vec b ,\ vec c are vectors,...

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  19. If vec a ,\ vec b ,\ vec c are three mutually perpendicular vectors...

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