To'g'ridan-to'g'ri integrallash elementar funksiyalarning antiderivativlarini topish usuli. Asosiy qoidalar: ∫(a f(x)+b g(x))dx = a∫f(x)dx + b∫g(x)dx; ∫x^n dx = x^{n+1}/(n+1)+C (n≠-1); ∫e^x dx = e^x + C; ∫sin x dx = -cos x + C; ∫cos x dx = sin x + C; ∫1/x dx = ln|x| + C. Natijada noaniq integral I(x)+C bilan ifodalanadi