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Mathematics 8 Online
OpenStudy (tcp2315):

If r= 4 and s = -3 1 2 find: |r+s|

OpenStudy (anonymous):

waht are the 1 and 2 for?

OpenStudy (anonymous):

fractions im assuming?

OpenStudy (anonymous):

4+-3=1 the answer is one

OpenStudy (tcp2315):

no, they are vector coordinates x is the top y is the bottom

OpenStudy (anonymous):

ohh

OpenStudy (anonymous):

well the addition is (1,3) so magnitude is sqrt of 10

OpenStudy (tcp2315):

wow. absolutely pathetic on my part

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