问题
选择题
正弦函数是奇函数，f(x)＝sin(x2＋1)是正弦函数，因此f(x)＝sin(x2＋1)是奇函数．以上推理( )
A．结论正确
B．大前提不正确
C．小前提不正确
D．全不正确
答案
答案：C
题目分析：由于函数f(x)＝sin(x2＋1)不是正弦函数，故小前提不正确，故选C．
点评：熟练掌握演绎推理的概念是解决此类问题的关键，属基础题
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正弦函数是奇函数，f(x)＝sin(x2＋1)是正弦函数，因此f(x)＝sin(x2＋1)是奇函数．以上推理( )
A．结论正确
B．大前提不正确
C．小前提不正确
D．全不正确
答案：C
题目分析：由于函数f(x)＝sin(x2＋1)不是正弦函数，故小前提不正确，故选C．
点评：熟练掌握演绎推理的概念是解决此类问题的关键，属基础题
| 情景交际。 根据对话内容，从对话后的选项中选出能填入空白处的最佳选项.选项中有两项多余选项。 | |
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