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21 votes
21 votes
Given: a→ = (5,-4) and b→ = (2,3) Find 3a→ - b→

A. (3,- 7)
B. (13,- 15)
C. (13,- 1)
D. (15, 4)

User Andre Steingress
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1 Answer

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< 5,-4 > - < 2,3 > \implies < 5-2~~,~~-4-3 > \implies < 3~~,~~-7 >

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