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Any point on a line has the coordinates `(r+1, r-3, rsqrt(2)+4)` where r is any real number. The d.r's of the line are

A

`(1)/(sqrt(2)),(1)/(sqrt(2)),(1)/(sqrt(2))`

B

`(1)/(2),(1)/(2),(1)/(sqrt(2))`

C

`(1)/(2),(1)/(2),-(1)/(sqrt(2))`

D

`1,1,sqrt(2)`

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AAKASH SERIES-DIRECTION COSINES & RATIOS-EXERCISE - II
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  13. If the edges of rectangular parllelopiped are 3,2,1 then the angle bet...

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  14. If (l(1),m(1),n(1)),(l(2),m(2),n(2)) are d.c's of two lines whose angl...

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  15. If the d.r.s of the two lines are 1,1,2, -1,2,1 then d.c.s of a line w...

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  16. If the d.r.s of OA, OB are (1,1,-1),(1-2,1) then the d.c.s of the norm...

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  17. If (1,2,1), (1,-3,2) are the direction ratios of two lines and (l, m,n...

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