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Find the derivative of the following function.

y=log_(3)(-7x^(6)-9x^(5))
Answer: 
y^(')=

Find the derivative of the following function.\newliney=log3(7x69x5) y=\log _{3}\left(-7 x^{6}-9 x^{5}\right) \newlineAnswer: y= y^{\prime}=

Full solution

Q. Find the derivative of the following function.\newliney=log3(7x69x5) y=\log _{3}\left(-7 x^{6}-9 x^{5}\right) \newlineAnswer: y= y^{\prime}=
  1. Identify Function & Derivative Type: Identify the function and the type of derivative to be found.\newlineWe need to find the derivative of the function yy with respect to xx, where y=log3(7x69x5)y=\log_{3}(-7x^{6}-9x^{5}). This is a logarithmic differentiation problem.
  2. Apply Chain Rule for Logarithmic Differentiation: Apply the chain rule for logarithmic differentiation.\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. For a logarithm with base 33, the derivative of y=log3(u)y=\log_{3}(u) with respect to xx is 1uln(3)\frac{1}{u \cdot \ln(3)} times the derivative of uu with respect to xx, where uu is the inner function.
  3. Differentiate Inner Function: Differentiate the inner function uu with respect to xx. The inner function uu is 7x69x5-7x^{6}-9x^{5}. Using the power rule, the derivative of uu with respect to xx is u=76x6195x51=42x545x4u' = -7\cdot 6x^{6-1} - 9\cdot 5x^{5-1} = -42x^{5} - 45x^{4}.
  4. Combine Results from Steps 22 & 33: Combine the results from Step 22 and Step 33. Using the chain rule from Step 22 and the derivative of the inner function from Step 33, we get y=1((7x69x5)ln(3))(42x545x4)y' = \frac{1}{((-7x^{6}-9x^{5}) \cdot \ln(3))} \cdot (-42x^{5} - 45x^{4}).
  5. Simplify Derivative Expression: Simplify the expression for the derivative.\newlineWe can factor out a common factor of x4x^4 from the numerator to simplify the expression. y=x4(42x45)(7x69x5)ln(3)y' = \frac{x^4 (-42x - 45)}{(-7x^{6}-9x^{5}) \cdot \ln(3)}.
  6. Check for Further Simplifications: Check for any possible simplifications. There are no further simplifications that can be made without changing the form of the expression significantly. The final answer is y=x4(42x45)(7x69x5)ln(3)y' = \frac{x^4 (-42x - 45)}{(-7x^{6}-9x^{5}) \ln(3)}.

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