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[Post New]29 Dec 2006 17:06:39 IST
    Subject: A problem on 'Points'
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saurabh_hr23 (2)

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Consider O as Origin, P1(x1,y1) P2(x2,y2) as two points. OP1, OP2 are two vectors. When their magnitude multiplied by the cosine of the angle between them you call it dot product.

Now (x1i + y1j) dot product (x2i + y2j)

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