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OpenStudy (anonymous):
Vectors [2,5,a] and [-6,b,9] are collinear. What is the value of b/a?
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OpenStudy (anonymous):
@amistre64
OpenStudy (amistre64):
if they are the same vector, divide like parts
OpenStudy (zzr0ck3r):
2/-6 = 5/b
OpenStudy (amistre64):
[2, 5,a] [-6,b,9] the ration is -1/3
OpenStudy (amistre64):
or [-6,b,9] [2, 5,a] the ratio os now -3 :)
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OpenStudy (amistre64):
b/5 = 9/a = -3 can you find b and a?
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