производность
По формуле: [r](x^( α))`= α x^( α -1)[/r] 1) (x^(1,4))`=1,4*x^(1,4-1) (x^(1,4))`=1,4*x^(0,4) 2) x^(-3,5))`=-3,5*x^(-3,5-1) (x^(-3,5))`=-3,5*x^(-4,5) 3) (x^(π))`=π*x^(π-1) 4) x^(-π))`=-π*x^(-π-1)