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A vectors which makes equal angles with ...

A vectors which makes equal angles with the vectors ` 1/3(hati - 2hatj + 2 hatk ) , 1/5(-4hati - 3hatk) , hatj ` is:

A

a) `5hat(i)+5hat(j)+hat(k)`

B

b) `5hat(i)+hat(j)-5hat(k)`

C

c) `5hat(i)+hat(j)+5hat(k)`

D

d) `pm(5hat(i)-hat(j)-5hat(k))`

Text Solution

Verified by Experts

The correct Answer is:
D
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ARIHANT MATHS-PRODUCT OF VECTORS-Exercise (Single Option Correct Type Questions)
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  8. If the vectors 3 vec p + vec q; 5 vec p - 3 vecq and 2 vec p + vec q; ...

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  9. Let vec u=hat i+hat j,vec v=hat i-hat j and vec w=hat i+2 hat j+3hat k...

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  10. Given a parallelogram ABCD. If |vec(AB)|=a, |vec(AD)| = b & |vec(AC)| ...

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  11. For two particular vectors vec A and vec B it is known that vec A xx ...

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  12. For some non zero vector vecv, if the sum of vecv and the vector obtai...

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  13. In isosceles triangles A B C ,| vec A B|=| vec B C|=8, a point E divid...

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  14. Given an equilateral triangle ABC with side length equal to 'a'. Let M...

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  15. In a quadrilateral ABCD, AC is the bisector of the (AB, AD) which is (...

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  16. If the distance from the point P(1, 1, 1) to the line passing through ...

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  17. Given the vectors vec u=2 hat i-hat j-hat k and vec v=hat i-hat j+2ha...

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  18. Vector vec c is perpendicular to vectors vec a=(2,-3,1)a n d vec b...

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  19. Let vec a= hat j+hat j,vec b=hat j+hat k and vec c=alpha vec a+beta v...

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  20. A rigid body rotates about an axis through the origin with an angular ...

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