f(x) = (3x - 7)^3
f(x0) = f(3) = (9 - 7)^3 = 2^3 = 8
f'(x) = ((3x - 7)^3)' = (3x - 7)' × 3(3x - 7)^2 = 3 × 3(3x - 7)^2 = 9(3x - 7)^2
f'(x0) = f(3) = 9(9 - 7)^2 = 9 × 2^2 = 9 × 4 = 36
y(кас) = f'(x0) (x - x0) + f(x0) = 36(x - 3) + 8 = 36x - 108 + 8 = 36x - 100
y(кас) = 36x - 100
f(x) = (3x - 7)^3
f(x0) = f(3) = (9 - 7)^3 = 2^3 = 8
f'(x) = ((3x - 7)^3)' = (3x - 7)' × 3(3x - 7)^2 = 3 × 3(3x - 7)^2 = 9(3x - 7)^2
f'(x0) = f(3) = 9(9 - 7)^2 = 9 × 2^2 = 9 × 4 = 36
y(кас) = f'(x0) (x - x0) + f(x0) = 36(x - 3) + 8 = 36x - 108 + 8 = 36x - 100
y(кас) = 36x - 100