1) y = 2x⁶ + x⁻³ - x⁴/³ + 1
y` = 12x⁵ - 3x⁻⁴ - (4/3)*(x¹/³) = 12x⁵ - 3/x⁴ - (4/3)*(x¹/³
2) y = 3*(x³/²) - x¹/²
y` = 4,5√x - 1/(2√x)
3) y = (2 - 6x³)⁵
y` = 5(2 - 6x³)⁴ *(-18x²) = (- 90x²)* (2 - 6x)⁴
4) y = 2*cos(3x - π/4)
y` = - 2*3sin(3x - π/4) = - 6*sin(3x - π/4)