Postfix-Expressions-And-Evaluation try.c and postfic_exam.c show how to used the header file postfix.h postfix_exam.c [output] [infix To posfix]~> 4 * 47 * cos(7 + 41) / 41 4 47 * 7 41+cos * 41/ try.c [output] Nafiu~ 4 * sin(7 + 4) -3.99996