1)y=(8x^6-4x^-3)^-5 2)y=2/(2-x^6)^3

Вычислим производные функций:

1) y = (8 * x^6 - 4 * x^(-3))^(-5);  

y \' = ((8 * x^6 - 4 * x^(-3))^(-5)) \' = -5 * (8 * x^6 - 4 * x^(-3))^(-5 - 1) * (8 * x^6 - 4 * x^(-3)) \' = -5 * (8 * x^6 - 4 * x^(-3))^(-6) * (8 * 6 * x^5 - 4 * (-3) * x^(-4))  = -5 * (8 * x^6 - 4 * x^(-3))^(-6) * (48 * x^5 + 12 * x^(-4))  = -5 * (48 * x^5 + 12 * x^(-4))/(8 * x^6 - 4 * x^(-3))^6; 

2) y =2/(2 - x^6)^3; 

y \' = (2/(2 - x^6)^3) \' = 2 * ((2 - x^6)^(-3)) \' = -2 * 3 * (2 - x^6)^(-3 - 1) = -6 * (2 - x^6)^(-4) = -6/(2 - x^6)^4.