Let y(x) = ax2 + bx + c. The function y(x) is not invertible, however, like the function f(x) = x2 we can make some restrictions on its domain to make it invertible. Hint: Think of the example (x2) given above. Find the largest possible domain where y(x) is invertible Find its inverse function using this domain Check that it is indeed the inverse function by verifying the identity y−1(y(x)) =y(y−1(x)) = x Show limx→3 x2 −3x+1 = 1 using the definition of limit, that is, using ε and δ.
Let y(x) = ax2 + bx + c. The function y(x) is not invertible, however, like the function f(x) = x2 we can make some restrictions on its domain to make it invertible. Hint: Think of the example (x2) given above. Find the largest possible domain where y(x) is invertible Find its inverse function using this domain Check that it is indeed the inverse function by verifying the identity y−1(y(x)) =y(y−1(x)) = x Show limx→3 x2 −3x+1 = 1 using the definition of limit, that is, using ε and δ.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.1: Inverse Functions
Problem 55E
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Let y(x) = ax2 + bx + c. The function y(x) is not invertible, however, like the function f(x) = x2 we can make some restrictions on its domain to make it invertible. Hint: Think of the example (x2) given above.
- Find the largest possible domain where y(x) is invertible
- Find its inverse function using this domain
- Check that it is indeed the inverse function by verifying the identity y−1(y(x)) =y(y−1(x)) = x
- Show limx→3 x2 −3x+1 = 1 using the definition of limit, that is, using ε and δ.
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