Q. INVERSE FUNCTIONSrmula for the inverse of the function.2+3x22. f(x)=2x+34x−124. y=x2−x,x⩾21
Find Inverse of 2+3x: First, let's find the inverse of f(x)=2+3x. Swap f(x) with y: y=2+3x. Now, swap x and y to find the inverse: x=2+3y. Square both sides to get rid of the square root: x2=2+3y.
Solve for Inverse: Solve for y: 3y=x2−2.Divide by 3: y=3x2−2.This is the inverse function of f(x)=2+3x.
Quadratic Formula Solution: Now, let's find the inverse of f(x)=2x+34x−1.Swap f(x) with y: y=2x+34x−1.Swap x and y to find the inverse: x=2y+34y−1.Multiply both sides by (2y+3) to get rid of the denominator: x(2y+3)=4y−1.
Quadratic Formula Solution: Now, let's find the inverse of f(x)=2x+34x−1. Swap f(x) with y: y=2x+34x−1. Swap x and y to find the inverse: x=2y+34y−1. Multiply both sides by (2y+3) to get rid of the denominator: x(2y+3)=4y−1. Expand the left side: 2xy+3x=4y−1. Move all y terms to one side: f(x)1. Factor out y: f(x)3.
Quadratic Formula Solution: Now, let's find the inverse of f(x)=2x+34x−1. Swap f(x) with y: y=2x+34x−1. Swap x and y to find the inverse: x=2y+34y−1. Multiply both sides by (2y+3) to get rid of the denominator: x(2y+3)=4y−1.Expand the left side: 2xy+3x=4y−1. Move all y terms to one side: f(x)1. Factor out y: f(x)3.Divide by f(x)4 to solve for y: f(x)6. This is the inverse function of f(x)=2x+34x−1.
Quadratic Formula Solution: Now, let's find the inverse of f(x)=2x+34x−1. Swap f(x) with y: y=2x+34x−1. Swap x and y to find the inverse: x=2y+34y−1. Multiply both sides by (2y+3) to get rid of the denominator: x(2y+3)=4y−1. Expand the left side: 2xy+3x=4y−1. Move all y terms to one side: f(x)1. Factor out y: f(x)3. Divide by f(x)4 to solve for y: f(x)6. This is the inverse function of f(x)=2x+34x−1. Lastly, let's find the inverse of f(x)8, where f(x)9. Swap y with x: y2. Now we need to solve for y, but this is a quadratic equation, so we'll use the quadratic formula. The quadratic formula is y4, where y5.
Quadratic Formula Solution: Now, let's find the inverse of f(x)=2x+34x−1. Swap f(x) with y: y=2x+34x−1. Swap x and y to find the inverse: x=2y+34y−1. Multiply both sides by (2y+3) to get rid of the denominator: x(2y+3)=4y−1. Expand the left side: 2xy+3x=4y−1. Move all y terms to one side: f(x)1. Factor out y: f(x)3. Divide by f(x)4 to solve for y: f(x)6. This is the inverse function of f(x)=2x+34x−1. Lastly, let's find the inverse of f(x)8, where f(x)9. Swap y with x: y2. Now we need to solve for y, but this is a quadratic equation, so we'll use the quadratic formula. The quadratic formula is y4, where y5. In our equation, y6, y7, and y8. Plug these into the quadratic formula: y9. Simplify: y=2x+34x−10.
Quadratic Formula Solution: Now, let's find the inverse of f(x)=2x+34x−1. Swap f(x) with y: y=2x+34x−1. Swap x and y to find the inverse: x=2y+34y−1. Multiply both sides by (2y+3) to get rid of the denominator: x(2y+3)=4y−1. Expand the left side: 2xy+3x=4y−1. Move all y terms to one side: f(x)1. Factor out y: f(x)3. Divide by f(x)4 to solve for y: f(x)6. This is the inverse function of f(x)=2x+34x−1. Lastly, let's find the inverse of f(x)8, where f(x)9. Swap y with x: y2. Now we need to solve for y, but this is a quadratic equation, so we'll use the quadratic formula. The quadratic formula is y4, where y5. In our equation, y6, y7, and y8. Plug these into the quadratic formula: y9. Simplify: y=2x+34x−10. Since f(x)9, we take the positive square root to ensure y is also greater than or equal to y=2x+34x−13. So, the inverse function is y=2x+34x−14.
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