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题目内容
（甘肃开放大学高等数学）
∫sin1/x/x^2dx=cos1/x+c
<img src="data:image/png;base64,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
" >
A.对
B.错
<img src="data:image/png;base64,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
" >
A.对
B.错
参考答案