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If vec a = 5 hat i - hat j - 3 hat k and...

If `vec a = 5 hat i - hat j - 3 hat k` and `vec b = hat i + 3 hat j - 5 hat k`, then show that the vectors `vec a + vec b` and `vec a - vec b` are orthogonal

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Find |vec a xx vec b| if vec a = 2 hat i - hat j + 3 hat k and vec b = 3 hat i - 5 hat j + 2 hat k .

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Given vec a = 4 hat i - hat j + 3 hat k and vec b = -2 hat i + hat j - 2 hat k . (i) Find a unit vector perpendicular to both vec a and vec b . (ii) Find a vector of magnitude 9 which is perpendicular to both vec a and vec b .

If vec a = 7 hat i - 2 hat j + 3 hat k , vec b = hat i - hat j + 2 hat k and vec c = 3 hat i + 8 hat j , then find veca.(vec b xx vec c) and (vec a xx vec b) vec c . Also find whether veca.(vec b xx vec c) and (vec a xx vec b) vec c are equal.

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If veca = hat i - hat j + hat k, vec b = 2 hat i + hat j + 3 hat k , then (i) Find vec a + vec b , vec a - vec b and vec a. vec b . (ii) Find (vec a + vec b) xx (vec a - vec b) . (iii) Find a unit vector perpendicular to both vec a + vec b and vec a - vec b .

NEW JOYTHI PUBLICATION-VECTOR ALGEBRA-ADDITIONAL QUESTIONS FOR PRACTICE 10.3
  1. Find vec a. vec b, when vec a = hat i + hat j + 2 hat k and vec b = 3 ...

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  2. Find the angle between the vectors veca and vecb such that |vec a| = |...

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  3. Find veca. vec b when veca = 2 hat i + 2 hat j - hat k and vec b = 6 h...

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  4. Find lambda if the vectors 5 hat i + 2 hat j - hat k and lambda hat i ...

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  5. If vec a = 5 hat i - hat j - 3 hat k and vec b = hat i + 3 hat j - 5 ...

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  6. Consider the vectors veca = hat i + 3 hat j + hat k and vec b = 2 hat ...

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  7. Prove that the vectors 3 hat i + hat j + 3 hat k and hat i - hat k are...

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  8. If A(0,1,1), B(3, 1,5) and C(0, 3, 3) are three points show that Delta...

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  9. If vec a is a unit vector and (vec x - vec a).(vec x + vec a) = 8, the...

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  10. Find the angle betweeen two vectors vec a and vec b with magnitudes 2 ...

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  11. Find |vec a| and |vec b| if (vec a + vec b).(vec a - vec b) = 3 and 2|...

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  12. Find |vec a - vec b|, if |vec a| = 4, vec b = 12 and vec a. vecb = 16.

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  13. Find the magnitude of two vectors veca and vec b having the same magni...

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  14. If theta is the angle between the unti vectors vec a and vec b , then...

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  15. If vec a and vec b are two non- zero vectors such that | vec a + vec b...

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  16. If vec a and vec b are two vectors such that vec a + vec b is perpen...

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  17. If vec a and vec b are orthogonal vectors, prove that (vec a + vec b...

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  18. Consider the vectors vec a = hat i + 2 hat j - 3 hat k and vec b = 4 h...

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  19. If vec a + vec b + vec c=0 and |vec a|=3, |vec b|=5, |vec c| =7, show ...

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  20. (i) Write the scalar componets of 3 hat i - 2 hat j + 5 hat k. (ii) F...

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