Ответ:

ИнтегралПервообразная
\(\int x\,dx\)\(\frac{x^2}{2}+C\)
\(\int\frac{dx}{x}\)\(\ln|x|+C\)
\(\int\sin x\,dx\)\(-\cos x+C\)
\(\int a^x\,dx\)\(\frac{a^x}{\ln a}+C\), \(a>0,\ a\ne1\)
\(\int\frac{dx}{\cos^2 x}\)\(\tan x+C\)
\(\int dx\)\(x+C\)