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posted by  KSpice on 11/15/2009 2:57:43 PM  |  status: Closed  |  Earned Karma: 49

Linear Algebra Help

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N/A N/A N/A N/A 11/19/2009 at 2:00:00 PM
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Known: sinx and cosx are linearly independent

Thus X = (sinx, cosx) is a basis for the vector space T of all linear combinations of sinx and cosx.  Use the identity sin(A+B) = sinAcosB + cosAsinB to show that f(x) = sin(x + (π/4)) is in T and give the coordinates of f with respect to the bases X.
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posted by Christina86 on 11/15/2009 9:01:50 PM  |  status: Live
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