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For the function 
f(x)=(7-4x)/(10+3x), find 
f^(-1)(x).
Answer: 
f^(-1)(x)=

For the function f(x)=74x10+3x f(x)=\frac{7-4 x}{10+3 x} , find f1(x) f^{-1}(x) .\newlineAnswer: f1(x)= f^{-1}(x)=

Full solution

Q. For the function f(x)=74x10+3x f(x)=\frac{7-4 x}{10+3 x} , find f1(x) f^{-1}(x) .\newlineAnswer: f1(x)= f^{-1}(x)=
  1. Replace with yy: To find the inverse function, f1(x)f^{-1}(x), we need to switch the roles of xx and yy in the original function and then solve for yy. Let's start by replacing f(x)f(x) with yy to make it easier to work with.\newliney=74x10+3xy = \frac{7 - 4x}{10 + 3x}
  2. Switch x and y: Now, switch x and y to find the inverse function.\newlinex=74y10+3yx = \frac{7 - 4y}{10 + 3y}
  3. Multiply both sides: Next, we need to solve for yy. To do this, we'll multiply both sides of the equation by (10+3y)(10 + 3y) to get rid of the fraction.\newlinex×(10+3y)=74yx \times (10 + 3y) = 7 - 4y
  4. Distribute xx: Distribute xx on the left side of the equation.10x+3xy=74y10x + 3xy = 7 - 4y
  5. Move terms with yy: Now, we want to get all the terms with yy on one side and the constant terms on the other side. Let's move the terms involving yy to the left side and the constant to the right side.\newline3xy+4y=710x3xy + 4y = 7 - 10x
  6. Factor out yy: Factor out yy from the left side of the equation.y(3x+4)=710xy(3x + 4) = 7 - 10x
  7. Divide both sides: Now, divide both sides by (3x+4)(3x + 4) to solve for yy.y=710x3x+4y = \frac{7 - 10x}{3x + 4}
  8. Find inverse function: We have found the inverse function. Therefore, the inverse function f1(x)f^{-1}(x) is:\newlinef1(x)=710x3x+4f^{-1}(x) = \frac{7 - 10x}{3x + 4}

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