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题目内容
（延安大学经济数学(专升本)1）
< img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/149500792968109955b103b0047668cdaa70b899b65e7image97.png" >
A cos(5x+7)/5+C
B cos(5x+7)/5-C
C cos(5x-7)+c
D cos(5x+7)+c
A cos(5x+7)/5+C
B cos(5x+7)/5-C
C cos(5x-7)+c
D cos(5x+7)+c
参考答案
