Find the value of the definite integral ∫(0 to π) sin(x) dx. (2019)

Practice Questions

Q1
Find the value of the definite integral ∫(0 to π) sin(x) dx. (2019)
  1. 0
  2. 1
  3. 2
  4. π

Questions & Step-by-Step Solutions

Find the value of the definite integral ∫(0 to π) sin(x) dx. (2019)
  • Step 1: Identify the integral you need to solve: ∫(0 to π) sin(x) dx.
  • Step 2: Find the antiderivative of sin(x). The antiderivative is -cos(x).
  • Step 3: Write the expression for the definite integral using the antiderivative: [-cos(x)] from 0 to π.
  • Step 4: Evaluate the antiderivative at the upper limit (π): -cos(π) = -(-1) = 1.
  • Step 5: Evaluate the antiderivative at the lower limit (0): -cos(0) = -1.
  • Step 6: Subtract the lower limit result from the upper limit result: 1 - (-1) = 1 + 1 = 2.
  • Step 7: Conclude that the value of the definite integral ∫(0 to π) sin(x) dx is 2.
  • Definite Integral – The process of calculating the area under the curve of a function between two specified limits.
  • Trigonometric Functions – Understanding the properties and integrals of sine and cosine functions.
  • Fundamental Theorem of Calculus – Connecting differentiation and integration, particularly evaluating integrals using antiderivatives.
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