Evaluate the integral ∫ cos(5x) dx.

Practice Questions

Q1
Evaluate the integral ∫ cos(5x) dx.
  1. 1/5 sin(5x) + C
  2. -1/5 sin(5x) + C
  3. 5 sin(5x) + C
  4. sin(5x) + C

Questions & Step-by-Step Solutions

Evaluate the integral ∫ cos(5x) dx.
  • Step 1: Identify the integral you need to evaluate, which is ∫ cos(5x) dx.
  • Step 2: Recognize that the integral of cos(kx) is given by the formula (1/k)sin(kx), where k is a constant.
  • Step 3: In this case, k is 5 because we have cos(5x).
  • Step 4: Apply the formula: Replace k with 5 in (1/k)sin(kx). This gives you (1/5)sin(5x).
  • Step 5: Don't forget to add the constant of integration, C, to your answer.
  • Step 6: Write the final answer: ∫ cos(5x) dx = (1/5)sin(5x) + C.
  • Integration of Trigonometric Functions – Understanding how to integrate functions like cos(kx) using the formula ∫ cos(kx) dx = (1/k)sin(kx) + C.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely