Which of the following functions lies in the subspace spanned by the functions 1, x, sinx and

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Which of the following functions lies in the subspace spanned by the functions 1, x, sinx and sin2 x?
(a) 3 - 5x
(b) x2 + sin2 x
(c) sinx -2cosx
(d) cos2x
(e) xsinx
(f) ex
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Applied Linear Algebra

ISBN: 978-0131473829

1st edition

Authors: Peter J. Olver, Cheri Shakiban

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