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u = a - b, v = a + b, |a| = |b| = implie...

u = a - b, v = a + b, |a| = |b| = `implies |u xx v|` =

A

`2 sqrt(16 - (a.b)^(2))`

B

`2 sqrt(16 - (a.b)^(2))`

C

`2 sqrt(4 - (a.b)^(2))`

D

`sqrt(4 - (a.b)^(2))`

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A
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DIPTI PUBLICATION ( AP EAMET)-PRODUCTS OF VECTORS-Exercise 1B Cross Product of Vectors
  1. If (a xx b)^(2) + (a.b)^(2) = 144 and |a| = 4 then |b| =

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  2. If |a| = 5, |b| = 6, |a.b| = 24 then |a xx b| =

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  3. u = a - b, v = a + b, |a| = |b| = implies |u xx v| =

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  4. The unit vector perpendicular to each of the vectors 2i - j + k and 3i...

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  5. A unit vector perpendicular to 2i + 3j + 4k and 4i - 3j + 2k is

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  6. The unit vector normal to the plane containing a = I - j - k and b = I...

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  7. A unit vector perpendicular to the plane of a = 2i - 6j -3k, b = 4i + ...

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  8. The number of vectors of unit length perpendicular to the vectors a = ...

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  9. A unit vector perpendicular to the plane determined by the points P(1,...

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  10. A unit vector normal to the plane through the point I, 2j, 3k is

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  11. The unit vector orthogonal to a = 2i + 2j + k, b = 3i + 4j - 12k and f...

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  12. If a = 2i + j - 3k, b = 1 - 2j + k then the vector of length 2 sqrt(3)...

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  13. The sine of the angle between the vectors I + 3j - 2k, 2i - 4j - k is

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  14. If theta is th angle between the vector 2i - 2j + 4k and 3i + j + 2k, ...

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  15. If a = 2i + 3j + 6k, b = 3i - 6j + 2k, c = 6i + 2j - 3k then a xx b =

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  16. If 13 a = 3i + 4j + 12k, 13b = 4i - 12j + 3k, 13 c = 12i + 3j - 4k the...

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  17. If (2i + 4j + 2k) xx (2i - xj + 5k) = 16i - 6j + 2xk, then the value o...

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  18. If a = 2i - 3j - k, b = I + 4j - 2k then (a + b) xx (a - b) =

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  19. If a = 3i - j - 2k, b = 2i + 3j + k then (a + 2b) xx (2a - b) =

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  20. If a = I + 2j - 3k, b = 2i + j + k, c = I + 3j - 2k then (a xx b) xx (...

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