Final answer:
The question is incomplete as it lacks an upper limit for the definite integral ∫ cos x dx. To solve a definite integral, both upper and lower limits are needed. The antiderivative of cos x is sin x, which is evaluated at the limits to find the integral's value.
Step-by-step explanation:
The question seems to be asking about determining the appropriate limits of integration for a definite integral.
However, there appears to be a misunderstanding as the integral provided ∫ cos x dx 0 lacks the upper limit of integration, making the question incomplete. In general, to evaluate definite integrals, we must have both lower and upper limits.
For instance, if the integral was ∫ cos x dx from 0 to π, then we could compute the integral by finding the antiderivative of cos x, which is sin x, and evaluating it at the upper and lower limits of integration.