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Mathematics 7 Online
OpenStudy (anonymous):

Let u = <-3, 4>, v = <8, 2>. Find u + v. is it 5,6?

OpenStudy (anonymous):

yes :) just add them

OpenStudy (anonymous):

@Data_LG2 Let u = <3, -1>, v = <-6, -6>. Find 9u + 2v 15,-21?

OpenStudy (anonymous):

yesh ! (^_^)

OpenStudy (anonymous):

@Data_LG2 Find a ⋅ b. a = 4i - 4j, b = 4i + 5j

OpenStudy (anonymous):

4i+4i- 4j+ 5j 8i+j

OpenStudy (anonymous):

so 8,1?

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