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Find the distance between the points `A` and `B` with position vectors `hat i- hat j` and `2 hat i+ hat j+2 hat kdot`

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Find the vector equation of a line passing through the point with position vector hat i-2 hat j-3 hat k and parallel to the line joining the points with position vectors hat i- hat j+4 hat ka n d2 hat i+ hat j+2 hat kdot Also, find the Cartesian equivalent of this equation.

Find the vector equation of the plane passing through three points with position vectors hat i+ hat j-2hatk, 2hat i-\ hat j+ hat k and hat i+2 hat j+ hat kdot Also find the coordinates of the point of intersection of this plane and the line vec r=3 hat i-\ hat j- hat k+lambda(2 hat i-\ 2 hat j+ hat k)dot

Find the vector equation of the plane passing through three points with position vectors hat i+ hat j-2hatk, 2hat i-\ hat j+ hat k and hat i+2 hat j+ hat kdot Also find the coordinates of the point of intersection of this plane and the line vec r=3 hat i-\ hat j- hat k+lambda(2 hat i-\ 2 hat j+ hat k)dot

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

Find the image of the point having position vector hat i+2 hat j+4 hat k in the plane vec r.(2 hat i- hat j+ hat k)+3=0.

Show that the points A, B, C with position vectors 2 hat i- hat j+ hat k ,\ hat i-3 hat j-5 hat k and 3 hat i-4 hat j-4 hat k respectively, are the vertices of a right angled triangle. Also, find the remaining angles of the triangle.

Find the value of lambda for which the four points with position vectors - hat j- hat k ,4 hat i+5 hat j+lambda hat k ,3 hat i+9 hat j+4 hat k and 4 hat i+4 hat j+4 hat k are coplanar.

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

Find the unit vector in the direction of the sum of the vectors 2 hat i+3 hat j- hat k and 4 hat i-3 hat j+2 hat kdot

Find the cosine of the angle between the vectors 4 hat i-3 hat j+3 hat k\ a n d\ 2 hat i- hat j- hat kdot

RD SHARMA ENGLISH-DIRECTION COSINES AND DIRECTION RATIOS-All Questions
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  2. Find the angle between the lines whose direction cosines are given b...

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  3. Find the distance between the points A and B with position vectors hat...

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  4. Find the locus of the point which is equidistant from the points A(0...

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  5. Find the distance between the points P(-2,4,1) and Q(1,2,5).

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  6. Prove by using distance formula that the points P(1,2,3),Q(-1,-1,-1)a ...

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  7. Show that the points A(0,1,2),B(2,-1,3)a n dC(1,-3,1) are vertices of ...

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  8. Find the coordinates of a point equidistant from the four points O(...

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  9. Using vector method prove that the points A(6,−7,−1),B(2,−3,1) and C(...

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  10. Find the coordinates of the point which divides the joint of P(2,-1...

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  11. Find the ratio in which the line joining the points (1,2,3)a n d(-3...

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  12. Find the ratio in which the join the A(2,1,5)a n dB(3,4,3) is divided ...

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  13. Using distance formula prove that the following points are collinear: ...

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  14. The mid-points of the sides of a triangle are (1,5,-1),(0,4,-2)a n d(2...

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  15. Find the coordinates of the points which trisect the line segment A ...

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  16. Show that the centroid of the triangle with vertices A(x1,\ y1,\ z1...

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  17. Find the coordinates of the foot of the perpendicular drawn from th...

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  18. Find the angle between the vectors with direction ratios proportion...

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  19. "P"(6," "3," "2)," Q"(5," "1," "3)"andR"(3," "3," "5) are three vert...

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  20. Find the direction cosines of the line which is perpendicular to the...

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