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Vector vec O A= hat i+2 hat j+2 hat k t...

Vector ` vec O A= hat i+2 hat j+2 hat k` turns through a right angle passing through the positive x-axis on the way. Show that the vector in its new position is `(4 hat i- hat j- hat k)/(sqrt(2))dot`

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Find the angle between the vectors hat i-2 hat j+3 hat k and 3 hat i-2 hat j+ hat kdot

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The position vector of the points P and Q are 5 hat i+7 hat j-2 hat k and -3 hat i+3 hat j+6 hat k , respectively. Vector vec A=3 hat i- hat j+ hat k passes through point P and vector vec B=-3 hat i+2 hat j+4 hat k passes through point Q . A third vector 2 hat i+7 hat j-5 hat k intersects vectors A and Bdot Find the position vectors of points of intersection.

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Show that the vector hat(i)+hat(j)+hat(k) makes the same angle with the positive directions of coordinates axes.

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CENGAGE PUBLICATION-VECTOR ALGEBRA-All Questions
  1. Given unit vectors hat m , hat n and hat p such that angel between h...

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  2. Let vec a , vec b ,a n d vec c be non-coplanar vectors and let the...

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  3. Vector vec O A= hat i+2 hat j+2 hat k turns through a right angle ...

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  4. Find | vec axx vec b| , if vec a= hat i-7 hat j+7 hat k and vec b=3 h...

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  5. Let the vectors vec a and vec b be such that | vec a|=3 and | vec b|=...

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  6. Show that ( vec a- vec b)xx( vec a+ vec b)=2( vec axx vec b)dot

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  7. Let vec a= hat i+4 hat j+2 hat k , vec b=3 hat i-2 hat j+7 hat ka n d...

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  8. If A ,Ba n dC are the vetices of a triangle A B C , then prove sine...

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  9. Using cross product of vectors , prove that sin (A+B)=sin A cosB + cos...

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  10. Find a unit vector perpendicular to the plane determined by the poin...

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  11. If vec a and vec b are two vectors, then prove that ( vec axx vec b...

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

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  13. Prove that in a tetrahedron if two pairs of opposite edges are perp...

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  14. Let vec a , vec b , and vec c are vectors such that | vec a|=3,| vec ...

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  15. If | vec a|=| vec b|=| vec a+ vec b|=1, then find the value of | vec a...

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  16. If vec A=4 hat i+6 hat j and vec B=3 hat j+4 hat k , then find the co...

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  17. A particle acted by constant forces 4 hat i+ hat j-3 hat k and 3 hat...

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  18. If veca , vecb , vecc are three mutually perpendicular unit ve...

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  19. Let vec a=x hat i+12 hat j- hat k , vec b=2 hat i+2x hat j+ hat ka n ...

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  20. If vec a , vec b ,a n d vec c are three non-coplanar vectors, then ...

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