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Find the scalar components and magnitud...

Find the scalar components and magnitude of the vector joining the points `P(x_1,y_1,z_1)`and `Q(x_2,y_2,z_2)`

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Given points are
`P(x_1,y_1,z_1)`and `Q(x_2,y_2,z_2)`
So, `vec(PQ) = (x_2-x_1) hat i +(y_2-y_1) hat j + (z_2-z_1) hat k`
Then , scalar components of `vec(PQ)` = ` (x_2-x_1)`, `(y_2-y_1)` ,`(z_2-z_1)`
...
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NCERT-VECTOR ALGEBRA-MISCELLANEOUS EXERCISE
  1. If theta is the angle between any two vectors veca and vec b, then...

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  2. The two adjacent sides of a parallelogram are 2 hat i-4 hat j+5 hat k...

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  3. Show that the direction cosines of a vector equally inclined to the a...

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  4. Write down a unit vector in XY-plane, making an angle of 30° with the...

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  5. A girl walks 4 km towards west, then she walks 3 km in a direction 30...

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  6. Find the scalar components and magnitude of the vector joining the po...

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  7. Find the value of x for which x( hat i+ hat j+ hat k)is a unit vector...

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  8. Let vec a= hat i+4 hat j+2 hat k , vec b=3 hat i-2 hat j+7 hat kand ...

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  9. The scalar product of the vector hat i+ hat j+ hat kwith a unit vect...

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  10. If theta is the angle between two vectors veca and vecb, then veca...

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  11. Let -> aand -> bbe two unit vectors and is the angle between them...

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  12. If veca , vecb , veccare mutually perpendicular vectors of equal ma...

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  13. Prove that (veca+ vecb)*( veca+ vecb)=|veca|^2+| vecb|^2, if and only ...

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  14. The value of hat i . ( hat jxx hat k)+ hat j . ( hat i times hat k)+...

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  15. State True or False: If vec a= vecb + vec c then |veca |= |vec b| ...

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  16. Find the position vector of a point R which divides the line joining ...

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  17. If veca= hat i+ hat j+ hat k, vecb=2 hat i- hat j+3 hat k and vecc...

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  18. Find a vector of magnitude 5 units, and parallel to the resultant of ...

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  19. Show that the points A(1,2,8) , B(5,0,2) and C(11,3,7)are collinear, ...

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