1.
А) f(x) = 4x^5 - 4x + 1
f'(x)= 20x^4 - 4
Б) f(x) = (3x^2 - 1)*cosx
f'(x)= 6x*cosx - (3x^2 - 1)*sinx
В) f(x) = (2x)^(1/2) + tgx
f'(x)= 1/(2x)^(1/2) + 1/(cosx)^2
2.
f(x) = 2/x^2
f'(x)= -4/x^3
f'(2)= -4/8 = -1/2
3.
А) f(x) = (6x - 4)^(1/2)
f'(x)= 3/(6x - 4)^(1/2)
Б) f(x) = (3 - 2x)^6
f'(x)= -12 * (3 - 2x)^5
В) f(x) = 6/(5x - 1)^3
f'(x)= -90/(5x - 1)^4
4.
y = kx + a
k = f'(-2)
f(x) = 4x^3 - 2x
f'(x)= 12x^2 - 2
f'(-2)= 48 - 2 = 46
k = 46
y(-2)= f(-2)
f(-2)= 4*(-8) - 2*(-2) = -32 + 4 = -28
-28 = 46*(-2) + a
a = 64
y = 64 + 46x