f(x) = (x^(2) - 4) / (-1 - 0.25 * x^(2))
f''(x) = f''(x)
f'(x) = f'(x)
A: (-6, f(-6))
B: (6, f(6))
t_1(x) = x * f'(-2) + 4
t_2(x) = x * f'(2) + 4
WP_1: (-sqrt(4 / 3), f(-sqrt(4 / 3)))
WP_2: (sqrt(4 / 3), f(sqrt(4 / 3)))