Q. Evaluate ∫04(5e−0.5x−2x)dx and express the answer in simplest form.Answer:
Substitution Method Integration: We need to evaluate the integral of the function 5e−0.5x−2x from 0 to 4. We will integrate each term separately.First, let's integrate 5e−0.5x. We can use the substitution method for this part of the integral.Let u=−0.5x, which implies du=−0.5dx or dx=−2du.The integral of eu with respect to u is eu.So, the integral of 00 is 01.
Integrating −2x: Next, we integrate −2x with respect to x. The integral of x with respect to x is (1/2)x2.So, the integral of −2xdx is −x2.
Combining Integrals: Now we combine the two integrals to get the integral of the entire function: ∫(5e(−0.5x)−2x)dx=−10e(−0.5x)−x2+C, where C is the constant of integration.
Evaluating Antiderivative: We evaluate this antiderivative from 0 to 4: [−10e(−0.5x)−x2] evaluated from 0 to 4. This gives us: [−10e(−0.5⋅4)−42] - [\(-10e^{(−0.5\cdot0)} - 0^2\]).
Plugging in Values: Now we plug in the values and simplify:[-10e^{-2} - 16\] - \[-10e^{0} - 0\]).\(\newlineWe know that \$e^{0} = 1\), so this simplifies to:\(\newline\)\([\(-10\)/e^{\(2\)} - \(16\)\] - \[-10 - 0\]).
Final Answer: Simplifying further, we get:\(\newline\)\(-10/e^2 - 16 + 10\).
Final Answer: Simplifying further, we get:\(\newline\)\(-10/e^2 - 16 + 10\).Finally, we combine like terms to get the final answer:\(\newline\)\(-10/e^2 - 6\).
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