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Mathematics 18 Online
OpenStudy (anonymous):

x = (1, 2, 3) y = (4, -2, 1) What is the angle between x and y ?

ganeshie8 (ganeshie8):

use dot product

OpenStudy (anonymous):

to find the angle ?

OpenStudy (anonymous):

wouldn't that just result in (x)(y)

ganeshie8 (ganeshie8):

cos theta = x.y/|x||y|

OpenStudy (anonymous):

thanks !

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