Q. For the function f(x)=(2x−1)5, find f−1(x).f−1(x)=25x+1f−1(x)=25x+1f−1(x)=52(x+1)f−1(x)=52x+1
Define function f(x): Let's start by defining the function f(x) and setting it equal to y for convenience:f(x)=(2x−1)5y=(2x−1)5Now, to find the inverse function, we need to solve for x in terms of y.
Swap x and y: Swap x and y to begin finding the inverse function:x=(2y−1)5Now we need to solve for y.
Take fifth root: Take the fifth root of both sides to eliminate the exponent on the right-hand side:5x=2y−1
Multiply by 2: Multiply both sides by 2 to isolate the term with y:2×5x=y−1
Add 1: Add 1 to both sides to solve for y:2⋅5x+1=y
Inverse function in terms of y: Now we have the inverse function in terms of y: f−1(x)=2⋅5x+1
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