### Unit Vector and Magnitude

A)Find a unit vector in the direction of u=<3,2,5> b) Find magnitude U for u=a+b where a =-3i+j & b=3i-5j

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A)Find a unit vector in the direction of u=<3,2,5> b) Find magnitude U for u=a+b where a =-3i+j & b=3i-5j

Please see the attached file regarding specifics. Thank you so much for your help.

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Only problems: 3,4,5 of 13.2 exercise. See attached file for full problem description.

See attached file for full problem description. Need problems 1,2,3 from the file...exercise 13.1.