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

The vector vec OA=-2hat i+hat j+2hat k tum by a right angle about origin (O) so that it passes through hat j+hat k, then vector in new position is

The angle between the vectors (hat i + hat j + hat k) and ( hat i - hat j -hat k) is

Find the vector equation of the plane passing through the points having position vectors hat i+hat j-2hat k,2i-hat j+hat k and hat i+2hat j+hat k

Position vector hat k is rotated about the origin by angle 135^0 in such a way that the plane made by it bisects the angle between hat ia n d hatjdot Then its new position is a.+-( hat i)/(sqrt(2))+-( hat j)/(sqrt(2)) b. +-( hat i)/2+-( hat j)/2-( hat k)/(sqrt(2)) c. ( hat i)/(sqrt(2))-( hat k)/(sqrt(2)) d. none of these

Find the vector equation of a plane passing through a point having position vector 2 hat i- hat j+ hat k and perpendicular to the vector 4 hat i+2 hat j-3 hat kdot

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

The position vector of the points Pa n dQ 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 Aa n dBdot Find the position vectors of points of intersection.

Find the equation of the line in vector and in cartesian form that passes through the point with position vector 2hat i-hat j+4hat k and is in the direction hat i+2hat j-hat k

The position vectors of the points Pa n dQ with respect to the origin O are vec a= hat i+3 hat j-2 hat k and vec b=3 hat i- hat j-2 hat k , respectively. If M is a point on P Q , such that O M is the bisector of angleP O Q , then vec O M is a. 2( hat i- hat j+ hat k) b. 2 hat i+ hat j-2 hat k c. 2(- hat i+ hat j- hat k) d. 2( hat i+ hat j+ hat k)

A DAS GUPTA-Product of two Vectors-Exercise
  1. If |vec a|=3,|vec b|=5,|vec c|=7 and vec a+vec b+vec c=0 then angle be...

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  2. The conditions under which the vector vec P + vec Q and vec P - vec Q ...

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  3. Let vec O A- vec a , hat O B=10 vec a+2 vec ba n d vec O C= vec b ,w ...

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

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  5. A vector a has components a1,a2,a3 in a right handed rectangular cart...

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  6. If vec a * vec b = vec a * vec c then

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  7. If vec(A)+vec(B)+vec(C )=0 then vec(A)xx vec(B) is

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  8. If vec a xx vec b= vec b xx vec c != vec 0 then which one is true wh...

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  9. A, B, C and D are four points in a plane with position vectors vec a,v...

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  10. If |vec a|= |vec b|= 1 and |vec a xx vec b|=1 then

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  11. The vector vecb = 3j + 4k is to be written as the sum of a vector vecb...

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  12. Let veca=2hati-hatj+hatk , vecb= hati+2hatj-hatk and vec c= hati+hatj-...

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  13. If vec a+ vec b+ vec c=0 and | vec a|=3,\ | vec b|=5 and | vec c|=7 ...

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  14. If vec(a). vec(b) = 0 and vec(a) xx vec(b) = vec(0) then which one of ...

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  15. If vec a=4 hat i+6 hat ja n d vec b=3 hat j+4 hat k , then find the c...

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  16. In each of the following, fill in the blank so that the resulting stat...

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  17. If vec(A) xx vec(B) = vec(B) xx vec(A), then the angle between A to B ...

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  18. Find a unit vector vec cif- vec i+ vec j- vec kb i s e c t st h ea ng...

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  19. If theta is the angle between the unit vectors hat a and hat b then co...

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  20. In each of the following, one or more options are correct. Choose the...

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