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Mathematics 17 Online
OpenStudy (anonymous):

Vectors

OpenStudy (anonymous):

OpenStudy (anonymous):

|dw:1448102741781:dw|

OpenStudy (anonymous):

Therefore,xq=-3x+y

OpenStudy (anonymous):

i don't know how to find OP...

OpenStudy (baru):

OP=OX+XP

OpenStudy (baru):

XP=1/3 XY

OpenStudy (anonymous):

okay

OpenStudy (baru):

OX+XY=OY

OpenStudy (baru):

now write this ^ equation in terms of x and y

OpenStudy (anonymous):

\[3x+3xp=2y\]

OpenStudy (anonymous):

is it correct?

OpenStudy (baru):

how did you get 3xp? the objective was to write XY in terms of x and y OX+XY=OY 3x+ XY =2y

OpenStudy (baru):

following?

OpenStudy (anonymous):

yes

OpenStudy (baru):

now re-arrange to get XY in terms of x and y

OpenStudy (baru):

what do you get?

OpenStudy (anonymous):

xy=-3x+2y

OpenStudy (baru):

dont confuse X with x and Y with y

OpenStudy (anonymous):

okay

OpenStudy (baru):

XP=1/3 XY so find XP in terms of x and y

OpenStudy (anonymous):

xp=-x+2y/3

OpenStudy (anonymous):

op=3x-x+2y/3

OpenStudy (baru):

yep :)

OpenStudy (anonymous):

op=2x+2y/3

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