Writing Vector <1,7> as Sum of 2 Vectors

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SUMMARY

The discussion focuses on decomposing the vector <1,7> into two components: one parallel to the vector <2,-1> and the other perpendicular to it. The solution provided identifies the vectors as <-2,1> and <3,6>. The use of the dot product is suggested as a potential method for solving the problem, although the final answer is derived from a geometric interpretation involving right-angle triangles.

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Homework Statement



Write the vector <1,7> as a sum of two vectors, one parallel to <2,-1> and one perpendicular to <2,-1>

Homework Equations


DOt Product


The Attempt at a Solution



I'm confused on where to begin this problem. Should I be using the dot product?

Thanks
 
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i think you should draw out the vectors as they make up a right angle triangle.
 
I got the answer:

<-2,1> and <3,6>
 

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