Q. Evaluate ∫02(10e−0.5x+2x)dx and express the answer in simplest form.Answer:
Identify Terms: Identify the two separate terms in the integral.We have the integral of two terms: 10e(−0.5x) and 2x. We will integrate each term separately.
Integrate First Term: Integrate the first term 10e−0.5x. The integral of eax with respect to x is (1/a)eax, so the integral of 10e−0.5x is −20e−0.5x. Calculation: ∫10e−0.5xdx=−20e−0.5x+C
Integrate Second Term: Integrate the second term 2x. The integral of x with respect to x is (1/2)x2, so the integral of 2x is x2. Calculation: ∫2xdx=x2+C
Combine Integrals: Combine the results of the two integrals.The combined indefinite integral is −20e(−0.5x)+x2+C.
Evaluate Definite Integral: Evaluate the definite integral from 0 to 2. We need to calculate (−20e−0.5x+x2) evaluated at x=2 and subtract the value of the function evaluated at x=0. Calculation: [(−20e−0.5⋅2+22)−(−20e−0.5⋅0+02)]