a) f'(x) = 10x^9 - 12x^2 + cos(x)б) f'(x) = 2sin(x) / cos^3(x+П/2)в) f'(x) = (3x^2 / 2√x^3-1) cos^3(x) - √x^3-1 3cos^2(x) * sin(x)
a) f'(x) = 10x^9 - 12x^2 + cos(x)
б) f'(x) = 2sin(x) / cos^3(x+П/2)
в) f'(x) = (3x^2 / 2√x^3-1) cos^3(x) - √x^3-1 3cos^2(x) * sin(x)