Understanding Differential Calculus: Solving Homework Equations

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SUMMARY

The discussion focuses on solving the fourth derivative of the function f(x) = 1/x² + 4x + 9 + x⁴ at x = -2. Participants clarify that the task involves applying the power rule of differentiation to find f'(x), f''(x), and f'''(x) before calculating f''''(-2). The importance of posting calculus-related questions in the appropriate forum is also highlighted.

PREREQUISITES
  • Understanding of differential calculus concepts
  • Familiarity with the power rule of differentiation
  • Ability to compute higher-order derivatives
  • Basic knowledge of evaluating functions at specific points
NEXT STEPS
  • Practice finding higher-order derivatives using the power rule
  • Learn about the implications of evaluating derivatives at specific points
  • Explore applications of differential calculus in real-world problems
  • Study common mistakes in calculus to avoid errors in homework
USEFUL FOR

Students studying calculus, educators teaching differential calculus, and anyone seeking to improve their skills in solving derivative-related homework problems.

s883
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Homework Statement


Could anyone explain me how to solve this?

Homework Equations



f(x) =
1/x2 + 4x + 9 + x4 , f’”’(-2) =


The Attempt at a Solution

 
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Hello s883! :smile: It means to take the 4th derivative of the given function f(x) and then evaluate the resulting expression at x = -2. And I would probably put calculus questions in the calculus forum for next time :wink:
 
I assume you mean f(x) = 1/x^2 + 4x + 9 + x^4= x^{-2}+ 4x+ 9+ x^4.

Can you find f'(x) using the "power rule" ((x^n)'= n x^{n-1})?

What about f'' and f'''?

Now do f''''.
 

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