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Mathematics, 16.01.2021 14:00 leslie4759

One of the following is a Unit vector? A.(-1,1)
B.(0,0)
C.

D.(1,1)


( \frac{ \sqrt{2} }{2}  \: and \:  \frac{ -  \sqrt{2} }{2} )

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One of the following is a Unit vector? A.(-1,1)
B.(0,0)
C.


D.(1,1)...
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