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If vec(a),vec(b),vec(c) are three unit v...

If `vec(a),vec(b),vec(c)` are three unit vectors such that `vec(a)` is perpendicular to `vec(b)`, and is parallel to `vec(c)` then `vec(a)xx(vec(b)xxvec(c))` is equal to

A

` veca `

B

` vecb `

C

` vecc `

D

` vec0 `

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The correct Answer is:
b
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FULL MARKS-APPLICATIONS OF VECTOR ALGEBRA-EXERCISE-6.10(M.C.Q)
  1. If a vector vec(alpha) lies in the plane of vec(beta)andvec(gamma), th...

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  2. If veca.vecb=vecb.vecc=vecc.veca=0 ,then the value of |[veca,vecb,v...

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  3. If vec(a),vec(b),vec(c) are three unit vectors such that vec(a) is per...

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  4. If [veca, vecb, vecc]=1 then the value of (veca.(vecbxxvecc))/((ve...

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  5. The volume of the parallelepiped with its edges represented by the vec...

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  6. If |veca|=2, |vecb|=7 and vecaxxvecb=3hati-2hatj+6hatk find the angle ...

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  7. If veca=hati+hatj+hatk,vecb=hati+hatj, vecc= veci and (vecaxxvec...

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  8. If veca,vecb, vecc are three non-coplanar vectors such that vecax...

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  9. If vec(a),vec(b),vec(c) are three non-coplanar vectors such that vec(a...

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  10. If the volume of the parallelpiped with vec(a)xxvec(b),vec(b)xxvec(c),...

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  11. Consider the vectors, vec(a),vec(b),vec(c),vec(d) such that (vec(a)xxv...

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  12. if (vecaxxvecb)xxvecc=vecaxx(vecbxxvecc) where veca,vecb,vecc ar...

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  13. If vec(a)=2hat(i)+3hat(j)-hat(k),vec(b)=hat(i)+2hat(j)-5hat(k),vec(c)=...

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  14. The angle between the lines (x-2)/(3)=(y+1)/(-2),z=2and(x-1)/(1)=(2y+3...

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  15. If the line (x-2)/(3)=(y-1)/(-5)=(z+2)/(2)" lies in the plane "x+3y-az...

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  16. The angle between the line vecr=(hati+2hatj-3hatk)+t(2hati+hatj-2hatk)...

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  17. The coordinates of the point where the line vecr=(6hati-hatj-3hatk)+...

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  18. Distance from the origin to the plane 3x - 6y + 2z + 7 = 0 is

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  19. The distance between the planes x + 2y + 3z + 7 = 0 and 2x + 4y + 6z +...

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  20. If direction cosines of a line are (1)/(c),(1)/(c),(1)/(c)," then. "

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