Let f: R → R be the function defined

Question:

Let f: R → R be the function defined by f (x) = 2x – 3, ∀ x ∈ R. write f –1.

Solution:

Given function,

f (x) = 2x – 3, ∀ x ∈ R

Let y = 2x – 3

x = (y + 3)/ 2

Thus,

f -1(x) = (x + 3)/ 2

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