Solving for Unknown Vectors in Vector Addition Equations

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SUMMARY

The discussion focuses on solving for an unknown vector "c" in the vector addition equation where "a" vector - "b" vector equals 7m(i) - 3.5m(j) - 4.5m(k). The equation is reformulated to find "c" such that "a" - "b" + "c" = 0. The solution involves rearranging the equation to c = b - a, emphasizing the importance of vector components and their directional properties. The discussion highlights the fundamental principle that vectors can only be added component-wise.

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Homework Statement



"a" vector - "b" vector = 7m(i) + -3.5m(j) + -4.5m(k)

A third vector "c" vector pops out of nowhere.

Find the new unit-vector notation such that "a" vector - "b" vector + "c" vector = 0

?m(i) + ?m(j) + ?m(k)

Homework Equations



a - b + c = 0

The Attempt at a Solution



c = b - a? <<< How do you do it backwards?
 
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You are given A-B, so they said they added another vector C...

So you have (A-B)+C=0, Since you already know A-B, you just have to find a vector that you can add to that which will sum up to zero.


remember i=x, j=y, k=z and you can only add x to x and y to x and z to z.

So its just basic math really. here is an example which should point you in the right direction.

<1,5> +<-1,-5>=<0,0>
 
Change the signs. Thanks NationalBasketballAssociationJamOneHundred!
 

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