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=$-\int \dfrac{ημx-xσυνx}{x^{2}+ημ^{2}x}dx$==$-\int \dfrac{ημx-xσυνx}{ημ^{2}x}\cdot \dfrac{ημ^{2}x}{x^{2}+ημ^{2}x}dx$==$-\int{(\dfrac{x}{ημx})}'\cdot \dfrac{1}{(\frac{x}{sinx})^{2}+1}dx$==$-τοξεφ\dfrac{x}{ημx}+c$.
=$-\int \dfrac{ημx-xσυνx}{x^{2}+ημ^{2}x}dx$=
ΑπάντησηΔιαγραφή=$-\int \dfrac{ημx-xσυνx}{ημ^{2}x}\cdot
\dfrac{ημ^{2}x}{x^{2}+ημ^{2}x}dx$=
=$-\int{(\dfrac{x}{ημx})}'\cdot
\dfrac{1}{(\frac{x}{sinx})^{2}+1}dx$=
=$-τοξεφ\dfrac{x}{ημx}+c$.