Try another version of this question Evaluate the following definite integral. `int_(- (pi)/4)^((pi)/4) 2 sin(x) dx`
Write the exact answer. Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Consider the symmetry of the sine function over the given interval. Think about how this symmetry might affect the integral when the limits are opposite numbers.
Enter DNE for Does Not Exist, oo for Infinity 0