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Writhe the direction cosines of the vect...

Writhe the direction cosines of the vector ` hat i+2 hat j+3 hat kdot`

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Unit vector in the direction of given vector is,
`= { hat i+2 hat j+3 hat k}/sqrt{1^2+2^2+3^2}`
`={ hat i+2 hat j+3 hat k}/sqrt{14}`
`= 1/sqrt(14) hat i+2/sqrt14 hat j+3/sqrt14 hat k`
Its direction cosines are `1/sqrt14,2/sqrt14,3/sqrt14`
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RD SHARMA-ALGEBRA OF VECTORS-Solved Examples And Exercises
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  2. Write a vector in the direction of vector 5 hat i- hat j+2 hat k which...

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  3. Writhe the direction cosines of the vector hat i+2 hat j+3 hat kdot

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