Suppose u=5,0 and v=5,0 . Then: u+v = u-v = v-u = 6u = -21v = 2u-7v =

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Answer 1

u = (5,0) and v= (5,0)

 

Then u = v, unless there is a typo in the statement of the problem.  Therefore,

 

u-v= (0,0)

u+v = 2u = 2(5,0) = (10,0)

v-u= (0,0)

6u = 6(5,0) = (30,0)

-21v = -21(5,0) = (-105,0)

2u-7v = 2u-7u = -5u = -5(5,0) = (-25,0)