1) f'(x) = 10x^92) f'(x) = -12x3) f'(x) = -30x^4 - 16x^3 - 34) f'(x) = 7x^6 + 4x^5 - 9x^3 - 12x^2 - 125) f'(x) = -14(3 - 2x)^66) f'(x) = 7cos(7x)7) f'(x) = -2cosxsinx8) f'(x) = -sinx + cosx
Для x0 = -2:f'(-2) = 10(-2)^9 = -5120
Неравенство f'(x) < 0:12x^3 + 2x^4 < 02x^3(6 + x) < 0Решение: -6 < x < 0
При f'(x) = 0 для f(x) = 6x^2 + 32x + 2008:6x^2 + 32x + 2008 = 0x = -4, x = -50/3
1) f'(x) = 10x^9
2) f'(x) = -12x
3) f'(x) = -30x^4 - 16x^3 - 3
4) f'(x) = 7x^6 + 4x^5 - 9x^3 - 12x^2 - 12
5) f'(x) = -14(3 - 2x)^6
6) f'(x) = 7cos(7x)
7) f'(x) = -2cosxsinx
8) f'(x) = -sinx + cosx
Для x0 = -2:
f'(-2) = 10(-2)^9 = -5120
Неравенство f'(x) < 0:
12x^3 + 2x^4 < 0
2x^3(6 + x) < 0
Решение: -6 < x < 0
При f'(x) = 0 для f(x) = 6x^2 + 32x + 2008:
6x^2 + 32x + 2008 = 0
x = -4, x = -50/3