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Physics 7 Online
OpenStudy (samigupta8):

the vector joining the points (1,1,-1)and B(2,-3,4) and pointing from A to B

OpenStudy (anonymous):

We have:co ordinates of A in vector form:i+j-k and B:2i-3j+4k .so a vector AB from A To B wil be A-B. i.e: -i+3j-5k

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