Q. For the function f(x)=73x−10, find f−1(x).f−1(x)=7(x+10)3f−1(x)=(7x+10)3f−1(x)=(7x+10)3f−1(x)=7x3+10
Write function as y: To find the inverse function, we first write the function as y=73x−10.
Swap x and y: Next, we swap x and y to solve for the inverse function: x=73y−10.
Isolate cube root term: Now, we isolate the cube root term by adding 10 to both sides: x+10=73y.
Cube both sides: To remove the cube root, we cube both sides of the equation: (x+10)3=(73y)3.
Divide by 73: Cubing the right side gives us (x+10)3=73×y because (3y)3=y.
Simplify the equation: Now we divide both sides by 73 to solve for y: y=73(x+10)3.
Simplify the equation: Now we divide both sides by 73 to solve for y: y=73(x+10)3.Since 73 is 343, we simplify the equation to get the inverse function: f−1(x)=343(x+10)3.
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