是不定积分吧,后面漏了dx
∫1/x^2*sec^2(1/x)dx
=-∫sec^2(1/x)d(1/x)
=-tan(1/x)+C
如果不懂,请Hi我,祝学习愉快!∫e^(2x)-(1/e^x)dx帮忙谢谢∫[e^(2x)-(1/e^x)]dx=∫e^(2x)dx-∫(1/e^x)dx=e^(2x)/2+e^(-x)+C
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