Найти производную
1) у= 1 = (1+x²)⁻¹ 1+x² y' = - 2x (1+x²)² 2) y= 3-x x+4 y' = -(x+4)-(3-x) = -x-4-3+x = -7 (x+4)² (x+4)² (x+4)² 3) y=x+2√x y'= 1+ 1 = √x +1 √x √x 4) y=(x+1)√x = x√x + √x = x^(3/2) + √x y' = 3√x + 1 = 3x +1 2 2√x 2√x