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Mathematics 7 Online
OpenStudy (stephanos100):

Find a • b. a = 4i + 8j, b = -2i + 3j?

OpenStudy (stephanos100):

is it 16? Thank You

OpenStudy (freckles):

multiply first components of both vectors then multiply second components of both vectors then add those results from the two multiplications so I guess you found 16 from doing -8+24 ? looks good then

OpenStudy (stephanos100):

yeah thank you

OpenStudy (freckles):

np

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