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Mathematics 10 Online
OpenStudy (darkbluechocobo):

Help with vectors

OpenStudy (darkbluechocobo):

Write v as the sum of two vector components if v = i + 3j and w = 2i + j.

OpenStudy (darkbluechocobo):

\[\frac{ 5 }{ ||w||^2 }(w)=v1\]

OpenStudy (darkbluechocobo):

\[\frac{ 5 }{ 5 }(2,1)\]

OpenStudy (darkbluechocobo):

so v1=(2,1)

OpenStudy (darkbluechocobo):

v1=(2i,j)

OpenStudy (darkbluechocobo):

v2=(i+3j)-(2i+j)

OpenStudy (darkbluechocobo):

v1=(2i, j) v2=(-i,2j)

OpenStudy (darkbluechocobo):

@rational does this look right? This is my first time doing a problem like this

OpenStudy (darkbluechocobo):

with what they are asking for v=(2i, j) + (-i, 2j)

OpenStudy (darkbluechocobo):

can confirm it is right now (2*-1)+(1*2)=0

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