Answer to Question #215248 in Physics for Tee

Question #215248

Given that R1=3i-2j+k, R2=2i-4j-3k, R3=-i+2j+2k.
Find the magnitude of

A=2r1-3r2-5r3

Expert's answer

\vec{A}=2(3,-2,1)-3(2,-4,-3)-5(-1,2,2)\\\vec{A}=(5,-2,1)

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