Question: Question 1 0/1 pt 3 99 0 Details The vector u has length 10 and points at an angle of 10 The vector u has

Question 1 0/1 pt 3 99 0 Details The vector u has length 10 and points at an angle of 10 The vector u has length 11 and points at an angle of 30 u . U = Question Help: Video Message instructor Submit Question . Question 2 0/1 pt 9 3 99 0 Details Let a = - 51 - 73 and b = 31 + 23. Find a . b Question Help: [Video Message instructor Submit Question Question 3 0/1 pt ) 3 99 0 Details Let a = (2, - 5) and b = ( - 2, - 4). Find a . b Question Help: Message instructor Submit
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