Найти производную функции Система x=2-(e)^-t y=1/1+(e)^t

f(x)\'  = (4х + 5)’ = (4х)’ + (5)’ = 4 * 1 * x^{(1 – 1)} +0 = 4 * x⁰ = 3 * 1 = 4.

f(x)\'  = (5х – 8)’ = (5х)’ – (8)’ = 5 * 1 * x^{(1 – 1)} – 0 = 5 * x⁰ = 5 * 1 = 5.

f(x)\'  = (4x⁵ – 5x⁴.)’ = (4x⁵)’ – (5x⁴)’ = 4 * 5 * x^{(5 – 1)} – 5 * 4 * x^{(4 – 1)} = 20 * x⁴ – 20 * x³ = 20x⁴ – 20x³ = 20x³(x – 1).

f(x)\'  = (x³ – 7x²)’ = (x³)’ – (7x²)’ = 1 * 3 * x^{(3 – 1)} – 7 * 2 * x^{(2 – 1)} = 3 * x² – 14 * x = 3x² – 14x = x(3x – 14).