2. Let V be the (real) vector space of all functions f from R into R. Which of the following sets of functions are subspaces of V? (a) all f such that f(x?) = f(x)2; (b) all f such that f(0) = f(1); dogle oldetive a bud deum ow lasis (c) all f such that f(3) = 1+f(-5); onob ed fliw aidT .aoaqe 1otoov

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