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Determine f⁻¹(x) in the form y = ext... for the function f(x) = -x2 with domain x ext in [-2, 3].

Mathematics

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Here's the solution for Question 2.2.

Question 2.2.1

Determine f−1(x)f^{-1}(x) in the form y=…y = \dots

Given the function f(x)=−x2f(x) = -x^2 with domain x∈[−2,3]x \in [-2, 3].

  1. Replace f(x)f(x) with yy.

    y=−x2y = -x^2
  2. Swap xx and yy to find the inverse relation.

    x=−y2x = -y^2
  3. Solve for yy.

    y2=−xy^2 = -x y=±−xy = \pm\sqrt{-x}
  4. Determine the domain and range of $f^{-

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