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The angle between the two lines whose di...

The angle between the two lines whose direction cosines are `((sqrt(3))/(4),(1)/(4),(sqrt(3))/(2))and((sqrt(3))/(4),(1)/(4),-(sqrt(3))/(2))`

A

`pi`

B

`(pi)/(2)`

C

`(pi)/(3)`

D

`(pi)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-DIRECTION COSINES & RATIOS-PRACTICE EXERCISE
  1. Assertion (A) : If a line make angles 45^(@), 45^(@) with the x and y ...

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  2. If a line makes angles cos^(-1)(1//5),cos^(-1)(3//5) with X and Y- axe...

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  3. The angle between the two lines whose direction cosines are ((sqrt(3))...

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  4. The angle between the line passing through the points (3,1,-2) and (4...

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  5. If the d.r's of two lines are (x,3,5) and (2,-1,2) and if the anlgle ...

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  6. The d.r.s of two perpendicular lines are 1,-3,5 and lambda,1 + lambda...

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  7. If the line joining the points (-1,2,3) (2,-1,4) is perpendicular to t...

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  8. If (1,-2,-2) and (0,2,1) are direction ratios of two lines, then direc...

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  9. If the line joining the points (1,4,2) and (-2,1,2) is inclined at an...

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  10. If the d.r's of bar(OA),bar(OB) are (1,-2,3),(-3,4,5) then the d.c's ...

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  11. If (l(1),m(1),n(1)),(l(2),m(2),n(2)) are d.c's of two lines then find ...

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  12. If the d.c's of the two lines are (2)/(3),(2)/(3),(1)/(3),(5)/(13),(12...

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  13. If (6,-2,-3),(1,2,2) are d.r's of two lines then the d.c's of line bis...

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  14. If (l(1),m(1),n(1)),(l(2),m(2),n(2)) are direction cosines of two line...

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  15. If the d.c's (l,m,n) of two lines are related as l + m + n = 0, 2lm -...

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  16. If the d.c's (l,m,n) of two lines are connected by the relations 3l+m+...

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  17. If the direction rations of two lines are given by 3lm-4ln+mn = 0 and ...

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  18. If the d.c's of two lines are such that l+3m+n = 0, 3l^(2) + 5m^(2) - ...

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  19. If the d.c's (l,m,n) of two lines are connected by the relations 7l^(...

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  20. The angle between two lines whose d.c's satisfy the equation n = l + m...

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