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Determine h(1)h'(1) if h(x)=f(g(2x2))h(x)=f(\sqrt{g(2-x^{2})}): if g(1)=4g(1)=4, f(2)=2f'(2)=2,

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Q. Determine h(1)h'(1) if h(x)=f(g(2x2))h(x)=f(\sqrt{g(2-x^{2})}): if g(1)=4g(1)=4, f(2)=2f'(2)=2,
  1. Understand Functions Composition: Understand the composition of functions involved.\newlineWe have h(x)=f(g(2x2))h(x) = f(\sqrt{g(2 - x^2)}). To find h(1)h'(1), we need to use the chain rule, which allows us to differentiate composite functions.
  2. Apply Chain Rule: Apply the chain rule to differentiate h(x)h(x). The chain rule states that if we have a composite function h(x)=f(g(x))h(x) = f(g(x)), then h(x)=f(g(x))g(x)h'(x) = f'(g(x)) \cdot g'(x). In our case, we have an additional layer due to the square root, so we will need to apply the chain rule multiple times.
  3. Differentiate Inner Function: Differentiate the innermost function g(2x2)g(2 - x^2) with respect to xx.g(2x2)=2xg(2x2)g'(2 - x^2) = -2x \cdot g'(2 - x^2) because the derivative of 2x22 - x^2 with respect to xx is 2x-2x.
  4. Differentiate Square Root: Differentiate the square root function with respect to its argument.\newlineIf we have u\sqrt{u}, where uu is a function of xx, then the derivative with respect to xx is (1/2)u1/2u(1/2) \cdot u^{-1/2} \cdot u'. In our case, u=g(2x2)u = g(2 - x^2), so we need to multiply the derivative from Step 33 by (1/2)(g(2x2))1/2(1/2) \cdot (g(2 - x^2))^{-1/2}.
  5. Differentiate Outer Function: Differentiate the outermost function ff with respect to its argument.\newlineWe are given that f(2)=2f'(2) = 2, but we need to evaluate ff' at the point g(2x2)\sqrt{g(2 - x^2)}. We will use this information later when we plug in the specific values.
  6. Combine Derivatives: Combine the derivatives using the chain rule.\newlineh(x)=f(g(2x2))12(g(2x2))12(2x)g(2x2)h'(x) = f'(\sqrt{g(2 - x^2)}) \cdot \frac{1}{2} \cdot (g(2 - x^2))^{-\frac{1}{2}} \cdot (-2x) \cdot g'(2 - x^2)
  7. Evaluate at x=1x = 1: Evaluate the derivative at x=1x = 1. We need to find the values of g(212)g(2 - 1^2), g(212)g'(2 - 1^2), and f(g(212))f'(\sqrt{g(2 - 1^2)}) to compute h(1)h'(1).
  8. Calculate g(212)g(2 - 1^2): Calculate g(212)g(2 - 1^2) and g(212)g'(2 - 1^2). Since g(1)=4g(1) = 4, we have g(212)=g(1)=4g(2 - 1^2) = g(1) = 4. We are not given g(212)g'(2 - 1^2), but we can infer that g(212)=g(1)g'(2 - 1^2) = g'(1) since 212=12 - 1^2 = 1. However, we do not have the value of g(1)g'(1), so we cannot proceed further with the calculation.
  9. Recognize Missing Information: Recognize the missing information and conclude the problem cannot be solved with the given data.\newlineWe cannot find h(1)h'(1) without knowing g(1)g'(1). Therefore, we cannot provide a numerical answer to the question prompt.

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