f(x) ?????
????(f(x)) ????? ?? ??? ????.
17? f(x)? 2?? ???? '?????'? '????'? ????. ???? ? ????? ??? ??? ??? ??? ??. ????? ??? ???? ??? ???? ??.
???? ???? ??? ?? ????? "f(x) ?????, ???? ? ? ????", "f(x) ?????, ???? ?? ???", "f(x) ?????, ???? ?? ???" ?? ??? ???.
f(x)? ????? ?? ???? ???? ??? ??? ??? ???? ?? ???? ????? ??? ????.
f(x) ????? ???? ????=SM??????
<????>