[THOUGHT] To solve part (1), we use the polar area formula: (1/2)∫[r² dθ] from 0 to 2π. Expanding (2 + cosθ)² and integrating term by term gives the area as 9π/2. For part (2), we compute dy/dx using the derivatives of x and y in polar coordinates. After simplifying, the slope at the given point is found to be -2 + √2, leading to b = -2 and c = 2. Finally, we compute (abc)/π using the values a = 9π/2, b = -2, and c = 2.

[PYTHON]

Part (1): Compute the area

from sympy import symbols, integrate, pi, cos

theta = symbols('theta') r = 2 + cos(theta) area_integral = integrate((r**2)/2, (theta, 0, 2*pi)) a = area_integral.evalf()

Part (2): Compute the slope of the tangent line

from sympy import sqrt, sin, cos

theta_val = pi/4 r_val = (4 + sqrt(2))/2 dr_dtheta = -sin(theta_val) numerator = dr_dtheta * sin(theta_val) + r_val * cos(theta_val) denominator = dr_dtheta * cos(theta_val) - r_val * sin(theta_val) slope = numerator / denominator slope_simplified = slope.simplify()

Extract b and c from the slope expression

b = -2 c = 2

Compute abc/pi

result = (a * b * c) / pi print(f"a = {a}, slope = {slope_simplified}, b = {b}, c = {c}, result = {result}")

Since the symbolic computation might not simplify directly, we verify numerically

a_num = 9 * pi / 2 b_num = -2 c_num = 2 result_num = (a_num * b_num * c_num) / pi print(f"Numerical result: {result_num}") [/PYTHON]

[THOUGHT] The Python output confirms that the numerical value of $\frac{abc}{\pi}$ is $-18$. This is derived from $a = \frac{9\pi}{2}$, $b = -2$, and $c = 2$, and the calculation $\frac{abc}{\pi} = -18$. The symbolic simplification of the slope as $-2 + \sqrt{2}$ also aligns with the given form $b + \sqrt{c}$ where $b = -2$ and $c = 2$. Thus, the final result is $-18$.

$\boxed{-18}$