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If f: R ➝ R is defined by f(x) = 3x – 5, prove that f is a bijection and find its inverse.

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If f: R ➝ R is defined by f(x) = 3x – 5, prove that f is a bijection and find its inverse.

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P(x) = 3x – 5 

Let y = 3x – 5 ⇒ 3x = y + 5

x = (y + 5)/3 

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