<p>设<img src="https://file.gaojiufeng.cn/learnAppQuestion/46/df/46dffbedda56c5fa4180cb597d232733.jpg" style="width: 100%;height: auto;">是由曲线<img src="https://file.gaojiufeng.cn/learnAppQuestion/51/2e/512e5e4bc47a53fdd3e0b17fc2bb4472.jpg" style="width: 100%;height: auto;">与直线<img src="https://file.gaojiufeng.cn/learnAppQuestion/08/f4/08f4795c9fdcde61d51730a301643402.jpg" style="width: 100%;height: auto;">及坐标轴围成的平面图形，如图所示.[图1]求：<img src="https://file.gaojiufeng.cn/learnAppQuestion/21/b9/21b9eae1905d08b214d97a5d529d37ff.jpg" style="width: 100%;height: auto;"><img src="https://file.gaojiufeng.cn/learnAppQuestion/46/df/46dffbedda56c5fa4180cb597d232733.jpg" style="width: 100%;height: auto;">的面积<img src="https://file.gaojiufeng.cn/learnAppQuestion/75/cb/75cbba4a7fa5d2b2c3bfbd476763b87c.jpg" style="width: 100%;height: auto;"></p>