Find the derivative of f(x) = x^5 - 3x + 2.

Practice Questions

Q1
Find the derivative of f(x) = x^5 - 3x + 2.
  1. 5x^4 - 3
  2. 5x^4 + 3
  3. 4x^3 - 3
  4. 5x^4 - 2

Questions & Step-by-Step Solutions

Find the derivative of f(x) = x^5 - 3x + 2.
  • Step 1: Identify the function you want to differentiate, which is f(x) = x^5 - 3x + 2.
  • Step 2: Break down the function into three parts: x^5, -3x, and +2.
  • Step 3: Differentiate each part separately using the power rule and basic derivative rules.
  • Step 4: For the first part, x^5, apply the power rule: bring down the exponent (5) and reduce the exponent by 1. This gives you 5x^(5-1) = 5x^4.
  • Step 5: For the second part, -3x, the derivative is simply -3 because the derivative of x is 1.
  • Step 6: For the third part, +2, the derivative is 0 because the derivative of a constant is 0.
  • Step 7: Combine the results from Steps 4, 5, and 6: f'(x) = 5x^4 - 3 + 0.
  • Step 8: Simplify the expression to get the final derivative: f'(x) = 5x^4 - 3.
  • Differentiation – The process of finding the derivative of a function, which represents the rate of change of the function with respect to its variable.
  • Power Rule – A rule used in differentiation that states if f(x) = x^n, then f'(x) = n*x^(n-1).
  • Constant Rule – A rule stating that the derivative of a constant is zero.
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