Decide, without calculation, if each of the integrals below are positive, negative, or zero. Let D be the region inside the unit circle centered at the origin. Let T, B, R, and L denote the regions enclosed by the top half, the bottom half, the right half, and the left half of unit circle, respectively. ? ? ? ? ? 1. 2. 3. 4. 5. [x D J B xe dA xe dA J xe dA L [x R xe dA [x T xe dA

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