Вычислить производные : у=3√х+4/4√х3-3/4√х : у=√х-1/3√х4: у=(х3-5х+7)(√х-4*4√х-2/√3х

1) (y)\' = ((3√x + 4)\' * (4√x3 - 3/4√x) - (3√x + 4) * (4√x3 - 3/4√x)\') / (4√x3 - 3/4√x)^2 = ((3 /2√x) * (4√x3 - 3/4√x) - (3√x + 4) * (4/3 * x^(-2/3) - 3/8√x) /  (4√x3 - 3/4√x)^2.

2) (y)\' = (√x)\' - (1/3√x^4)\' = 1/2√x - 2/3x.

3) = (x^3 - 5x + 7)\' * (√(x - 4) * 4√(x - 2) / √3x) + (x^3 - 5x + 7) * (√(x - 4) * 4√(x - 2) / √3x)\' = (3x^2 - 5) * (√(x - 4) * 4√(x - 2) / √3x) + (x^3 - 5x + 7)  * (((√(x - 4)\' * 4√(x - 2) + (4√(x - 2))\' * (√(x - 4) * √3x - √(x - 4) * 4√(x - 2) * (√3x)\' / (√3x)^2.