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OpenStudy (anonymous):
Let f = (x, 2x, y) determine whether F is a subspace of R^3
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OpenStudy (amistre64):
a subspace eh.... it looks to be confined to R^2
OpenStudy (amistre64):
maybe R^3
OpenStudy (amistre64):
we can make a vector function out of it: f = xi + 2xj + yk
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