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ا
اثبات فرمول ها:
انتگرالx dx/(x^2+a^2)^3^2=-1/(x^2+a^2)^1/2:que:
-
ا
اثبات فرمول ها:
انتگرالx dx/(x^2+a^2)^3^2=-1/(x^2+a^2)^1/2