Only the problem that is underlined 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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Only the problem that is underlined
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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