10. a) Compute the norm of the vector h-5, -4i. b) Compute the direction angle of the vector h-25, 7i. c) Suppose v = h6, −4i and w = h2, 11i. Compute 5v + 2w. d) Compute vw, where v and w are as in part (c). Find the components of a vector which has norm 17 and direction angle 230.

Q: a= b=

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