'23. Determine whether each of these functions is a bijection from R to R a) f(x) =2x +1 b) f(x) =x2 + 1 c) f(x) =x d) f(x) = (x2 +1)/6? + 2)'
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Injective: Assume f(a) = f(b). Then, 2a + 1 = 2b + 1, which implies a = b. Show more…
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