Question

$frac{x^{4} }{2} - frac{ x^{3}}{3} +3 при x = -1$

Answer 1

$frac{x^4}{2} - frac{x^3}{3} +3$
при  х = -1
$frac{(-1)^4}{2} - frac{(-1)^3}{3} +3= frac{1}{2} - (-frac{1}{3}) +3 = frac{1}{2}+ frac{1}{3} +3= frac{3+2}{6} +3= 3 frac{5}{6}$