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Find the angle between the pair of line...

Find the angle between the pair of lines with direction ratios given by
`1,2,-2" and "2,-2,1`

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Verified by Experts

The correct Answer is:
`cos^(-1)((4)/(9))`
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CHHAYA PUBLICATION-STRAIGHT LINE IN THREE DIMENSINAL SPACE -Exercise 4A
  1. Find the angle between the following pair of lines (x-7)/(2)=(y+5)/...

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  2. Find the angle between the pair of lines with direction ratios given ...

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  3. Find the angle between the pair of lines with direction ratios given ...

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  4. Find the angle between the pair of lines with direction ratios given ...

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  5. Find the angle between the pair of lines with direction ratios given ...

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  6. Find the equation of the line passing through the point (1,2,3), which...

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  7. Find the equation of the line which passes through the point with posi...

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  8. If the lines (x-1)/(-3)=(y-2)/(2lamda)=(z-3)/(2)" and "(x-1)/(3lamda)=...

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  9. Slow that the lines (x-5)/(7)=(y+2)/(-5)=(z)/(1) and (x)/(1)=(y)/(2)=(...

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  10. If the coordinates of the points A,B,C,D be (1,2,3), (4,5,7), (-4,3,-6...

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  11. Show that the lines (x+1)/(3)=(y+3)/(5)=(z+5)/(7) and x-2=(y-4)/(3)=(z...

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  12. Show that the lines (x-1)/(3)=(y+1)/(2)=(z-1)/(5) and (x+2)/(4)=(y-1)/...

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  13. Show that the line through P(3,9,4) and Q(-4,4,4)) intersect the line ...

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  14. Find whether the lines vec(r)=(2hat(i)+3hat(j)+hat(k))+t(5hat(j)-4hat(...

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  15. Determine whether the following pair of lines intersect or not : (i)...

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  16. The perpendicular distance of the points (1,0,0) from the y-axis is -

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  17. The perpendicular distance of the point (1,1,0) from the z-axis is -

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  18. The perpendicula distance of the points (1,1,1) from the x-axis is -

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  19. The perpendicular distance of the point (1,2,3) from the x-axis is -

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  20. Find the distance of the point (1,0,0) from the line (x-1)/(2)=(y+1)/(...

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