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OpenStudy (evanhelps):
Find a b. a = 4i + 8j, b = -2j + 3j.
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OpenStudy (evanhelps):
Not exactly sure if this is really easy or really hard.
OpenStudy (dan815):
a b?
OpenStudy (dan815):
a.b?
OpenStudy (evanhelps):
Yeah that's what it means
OpenStudy (evanhelps):
Anyone?
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OpenStudy (triciaal):
should that be -2i
OpenStudy (triciaal):
|dw:1402986862849:dw|
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