Решение
1) f(x) = 3x⁵ - 4x - 10
f`(x) = 15x⁴ - 4
2) f(x) = 2/x⁸ - x⁵/10 + 4√x
f`(x) = 2*x⁻⁸ - (1*10)*x⁵ + 4√x = - 16x⁻⁹ - 5x⁴/10 + 4*(1/2√x =
= - 16/x⁹ - x⁴/2 + 2 / √x)
3) f(x) = cos(2x² - 1)
f`(x) = - sinx*(2x² - 1) + 4x*cosx
4) f(x) = (x + 5)/sinx
f`(x) = [sinx - (x + 5)*cosx] / sin²x
5) f(x) = (2x² - 4)*(x + 3)
f`(x) = 4x*(x + 3) + (2x² - 4) = 4x² + 12 + 2x² - 4 = 6x² + 8
6) f(x) = (5x⁴ - 3)⁸
f`(x) = 8*(5x⁴ - 3)⁷ * 20x³ = 160x³(5x⁴ - 3)⁷
7) f(x) = √(x² + 4)
f`(x) = 2x / 2√(x² + 4) = x / √(x² + 4)
24 18
1) (9 х 8): 35 = 72/36
2) (7 х 16) : 24 = 14/3
3)42 х4 : 7 - 24
4) 6 х 57 ; 19 = 18
<span>54x+36x-x=178
89x=178
x=178:89
x=2
Ответ:2</span>
3*20:30 = 2
100:50+(72-47)=27
2=27