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Mathematics 15 Online
OpenStudy (anonymous):

Let u = <-3, -5>, v = <-3, 1>. Find u + v

jimthompson5910 (jim_thompson5910):

to add the vectors, you add the corresponding components

OpenStudy (anonymous):

@jim_thompson5910 <-6,-4>

jimthompson5910 (jim_thompson5910):

good

OpenStudy (anonymous):

Awesine! so if it's asking to find 4u, do I just multiply -3, and -5 by 4?

OpenStudy (anonymous):

Awesome*

jimthompson5910 (jim_thompson5910):

yep, you multiply every component by 4

jimthompson5910 (jim_thompson5910):

u = <-3, -5> 4u = <4(-3), 4(-5)> 4u = <-12, -20>

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