设平面图形D由曲线y=exy = e^{x}y=ex与直线y=−x+1y=-x + 1y=−x+1及x=1x = 1x=1所围成.试求:
(1)平面图形D的面积;
(2)平面图形D绕x轴旋转一周所得的旋转体的体积.
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