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Let u = <-8, -9>. Find 7u.

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vectors

asked Jul 30, 2014 in TRIGONOMETRY by anonymous

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1 Answer

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u =<-8,-9>

Use formula if u =<a,b> the ku =<ka,kb>

7u =<7(-8),7(-9)>

=<-56,-63>

answered Jul 30, 2014 by bradely Mentor

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