3 x − 2 = 5 3x-2=5 3x−2=5. Add 2 to both sides. Simplify 5 + 2 5+2 5+2 to 7. Divide both sides by 3.
How do you find the inverses?
- First, replace f(x) with y .
- Replace every x with a y and replace every y with an x .
- Solve the equation from Step 2 for y .
- Replace y with f−1(x) f − 1 ( x ) .
- Verify your work by checking that (f∘f−1)(x)=x ( f ∘ f − 1 ) ( x ) = x and (f−1∘f)(x)=x ( f − 1 ∘ f ) ( x ) = x are both true.
How do you solve an inverse step by step?
https://www.youtube.com/watch?v=2zeYEx4eTdc
What's the inverse of 3x 4?
The inverse function of 3x - 4 is (x+4)/3.
What is the inverse of f 3x 4 2?
Cancel the common factor. Divide x x by 1 1 . Since g(f(x))=x g ( f ( x ) ) = x , f−1(x)=2x3+43 f - 1 ( x ) = 2 x 3 + 4 3 is the inverse of f(x)=3x−42 f ( x ) = 3 x - 4 2 .
How do you find the solution to a square root function?
- Isolate the radical on one side of the equation.
- Square both sides of the equation.
- Solve the new equation.
- Check the answer. Some solutions obtained may not work in the original equation.
How do you find the square root of 1 5?
√(1.5) ≈ 1.2241 , and the real value, provided by our calculator, is √(1.5) ≈ 1.2247 .