Question: Let W = Span{1, ex, e2x, 2ex} Which one of the following is a basis for W? A. {ex} B. {1, ex, e2x} C. None

Let W = Span{1, ex, e2x, 2ex}

Which one of the following is a basis for W?

A. {ex}

B. {1, ex, e2x}

C. None of the other answers.

D. {1, ex}

E. {1, ex, 2ex}

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