Найти производную f’(x), если... (Фото задания прикреплено)

1) f'(x+5) = 1+0 = 1

2) f'((2x-3)(3x+1)) = 2*(3x+1) + 3*(2x-3) = 6x+2+6x-9 = 12x-7

3) f'((3x+5)/(1-3x)) = 3*(1-3x) - (-3)*(3x+5) = 3-9x+9x+15 = 18

4) = 3*(1/2√x)(2+√x) - (1/2√x)(3√x) = 3/√x+3/2-3/2 = (3√x)/x