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Find the derivative of the following function.

y=8^(9x^(5)-5x^(4))
Answer: 
y^(')=

Find the derivative of the following function.\newliney=89x55x4 y=8^{9 x^{5}-5 x^{4}} \newlineAnswer: y= y^{\prime}=

Full solution

Q. Find the derivative of the following function.\newliney=89x55x4 y=8^{9 x^{5}-5 x^{4}} \newlineAnswer: y= y^{\prime}=
  1. Identify Function Components: Identify the function and its components.\newlineWe have y=89x55x4y = 8^{9x^{5} - 5x^{4}}. This is an exponential function with a base of 88 and an exponent of 9x55x49x^5 - 5x^4.
  2. Apply Chain Rule: Apply the chain rule for derivatives.\newlineThe chain rule states that the derivative of a composite function is the derivative of the outer function evaluated at the inner function times the derivative of the inner function.\newlineHere, the outer function is a(u)=8ua(u) = 8^u and the inner function is u(x)=9x55x4u(x) = 9x^5 - 5x^4.
  3. Derivative of Outer Function: Find the derivative of the outer function a(u)=8ua(u) = 8^u with respect to uu. The derivative of aua^u with respect to uu is auln(a)a^u \cdot \ln(a), where aa is a constant and uu is the variable. So, a(u)=8uln(8)a'(u) = 8^u \cdot \ln(8).
  4. Derivative of Inner Function: Find the derivative of the inner function u(x)=9x55x4u(x) = 9x^5 - 5x^4 with respect to xx. The derivative of 9x59x^5 with respect to xx is 45x445x^4, and the derivative of 5x4-5x^4 with respect to xx is 20x3-20x^3. So, u(x)=45x420x3u'(x) = 45x^4 - 20x^3.
  5. Apply Chain Rule with Derivatives: Apply the chain rule using the derivatives from steps 33 and 44.\newliney=a(u)u(x)y' = a'(u) \cdot u'(x)\newliney=(89x55x4ln(8))(45x420x3)y' = (8^{9x^5 - 5x^4} \cdot \ln(8)) \cdot (45x^4 - 20x^3)
  6. Simplify Derivative: Simplify the expression for the derivative.\newliney=89x55x4ln(8)(45x420x3)y' = 8^{9x^5 - 5x^4} \cdot \ln(8) \cdot (45x^4 - 20x^3)\newlineThis is the final form of the derivative.

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