Question: Let a, b, c, d E R such that ad bc #0 and c# 0. Define f: R - ax + b {-d/c} R

Let a, b, c, d E R such that ad bc #0 and c# 0. Define f: R - ax + b {-d/c} R {a/c} by f(x) = cx + (a) Prove that f is injective. (b) Prove that f is (c) Find f-(x). surjective.

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