How do you find the unit vector in the direction of the given vector of #w=7j-3i#?

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Answer 1 · 2017-02-08T11:41:12

The answer is #=1/sqrt58*<7,-3>#

The unit vector in direction of #veca# is #=veca/(||veca||)#

Here #vecw= <7,-3>#

The modulus is #=||vecw||=||<7,-3>||#

#=sqrt(49+9)=sqrt(58)#

So,

the unit vector is

#=vecw/(||vecw||)=1/sqrt58*<7,-3>#