If (6,-2,-3),(1,2,2) are d.r's of two li...

If (6,-2,-3),(1,2,2) are d.r's of two lines then the d.c's of line bisecting the angle between them are

`(25/sqrt(714), 8/sqrt(714),5/sqrt(714)), (11/sqrt(1050),-20/sqrt(1050), -23/sqrt(1050))`

`(13/sqrt(210),4/sqrt(210),5/sqrt(210)), (1/sqrt(6),-2/sqrt(6), -1/sqrt(6))`

`(-25/sqrt(714), 8/sqrt(714),-5/sqrt(714)), (11/sqrt(1050),-20/sqrt(1050), -23/sqrt(1050))`

`(23/sqrt(210),40/sqrt(210),5/sqrt(210)), (1/sqrt(6),-2/sqrt(6), -1/sqrt(6))`

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DIPTI PUBLICATION ( AP EAMET)-DIRECTION COSINES AND DIRECTION RATIOS-EXERCISE 1

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