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，求y＝f(x)，y＝0及x＝1所围成的图形绕x轴旋转的旋转体体积V．- 15
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下列函数为奇函数的是
- A.y＝sinx＋cosx
- B.<img src="//img1.yqda.net/question-name/5e/b98913941851e141395222549b801c.jpg" height="30" width="61" />
- C.<img src="//img1.yqda.net/question-name/a4/5fa6dd4dff4e5f83624989dddcfa80.jpg" height="29" width="94" />
- D.<img src="//img1.yqda.net/question-name/6a/c8d6f54502c83732588c2b295d1839.jpg" height="30" width="128" />
- 16
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- A.<img src="//img1.yqda.net/question-name/77/c1e69c8d14a2c24e81d9d29ac3ef64.jpg" height="29" width="16" />
- B.<img src="//img1.yqda.net/question-name/1c/dc00e344a2e52226ca1414e6c001ae.jpg" height="30" width="16" />
- C.1
- D.∞
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- A.<img src="//img1.yqda.net/question-name/77/c1e69c8d14a2c24e81d9d29ac3ef64.jpg" height="29" width="16" />
- B.<img src="//img1.yqda.net/question-name/1c/dc00e344a2e52226ca1414e6c001ae.jpg" height="30" width="16" />
- C.1
- D.∞
- 18
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- A.奇函数
- B.偶函数
- C.非奇非偶的函数
- D.不能判定其奇偶性的函数
- A.e<sup>2</sup>
- B.e<sup>-2</sup>
- C.e
- D.e<sup>-1</sup>
- A.e<sup>2</sup>
- B.e<sup>-2</sup>
- C.e
- D.e<sup>-1</sup>
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- A.e<sup>2</sup>
- B.e<sup>-2</sup>
- C.e
- D.e<sup>-1</sup>
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- A.－1
- B.0
- C.1
- D.∞
