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Cat face [tex] \int\limits^._. { \frac{1}{ (x+2)^{2} } } \, dx ?[/tex]

Răspuns :

x+2=t, dx=dt
[tex] \int\ { \frac{1}{ t^{2} } } \, dt=- \frac{1}{t} +c=- \frac{1}{x+2} +c[/tex]