Step-by-step Answer
PAGE: 540SET: ExercisesPROBLEM: 36
Please look in your text book for this problem Statement

Given that

Find the magnitude.

         (Apply distance formula)

          (Substitute )

                            (Product of two same signs is positive)

                                  (Evaluate powers)

                                          (Add: )

                                           (Use a calculator)

Graph to determine how to find the direction.Draw a right tringle that has as its hypotenuse and an acute angle at .

                            (Substitute )



                                           (Use a calculator)

The direction of is or about .

The magnitude of is about 2.3 and a direction of about .


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