Evaluate ∫(6x^2 + 3)dx. (2022)

Practice Questions

Q1
Evaluate ∫(6x^2 + 3)dx. (2022)
  1. 2x^3 + 3x + C
  2. 2x^3 + 3 + C
  3. 2x^3 + 3x^2 + C
  4. 2x^3 + 3x^3 + C

Questions & Step-by-Step Solutions

Evaluate ∫(6x^2 + 3)dx. (2022)
  • Step 1: Identify the integral you need to evaluate: ∫(6x^2 + 3)dx.
  • Step 2: Break the integral into two separate parts: ∫6x^2dx + ∫3dx.
  • Step 3: Evaluate the first part: ∫6x^2dx. To do this, increase the exponent of x by 1 (from 2 to 3) and divide by the new exponent: (6/3)x^3 = 2x^3.
  • Step 4: Evaluate the second part: ∫3dx. The integral of a constant (3) is simply 3 times x: 3x.
  • Step 5: Combine the results from Step 3 and Step 4: 2x^3 + 3x.
  • Step 6: Don't forget to add the constant of integration (C) at the end: 2x^3 + 3x + C.
  • Integration – The process of finding the integral of a function, which involves determining the antiderivative.
  • Polynomial Functions – Understanding how to integrate polynomial terms individually.
  • Constant of Integration – Recognizing the importance of adding a constant (C) to the result of an indefinite integral.
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