Problem Analysis #17

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6,412 toks
Problem Statement

Let aa and bb be real numbers such thatlimx01x3(a20x11t2dt+bxcosx)=2.\lim_{x \to 0} \frac{1}{x^3} \left( \frac{a}{2} \int_0^x \frac{1}{1-t^2}\, dt + bx\cos x \right) = 2.Find the value of 100(a+b)2100(a + b)^2.\

Ground Truth
576
Execution Trace
Reasoning Process

[THOUGHT] The limit condition requires that the expression inside the limit has a finite value as (x \to 0). Expanding the integral and the cosine term, we find that the coefficient of (1/x^2) must be zero to avoid divergence, leading to (\frac{a}{2} + b = 0). The constant term then gives (\frac{a}{6} - \frac{b}{2} = 2). Solving these equations yields (a = \frac{24}{5}) and (b = -\frac{12}{5}). Thus, (a + b = \frac{12}{5}), ((a + b)^2 = \frac{144}{25}), and (100(a + b)^2 = 576). [/THOUGHT]

\boxed{576}

Reasoning Process

[THOUGHT] We need to solve for a and b using the given equations. We will use Python to solve the system of equations. [/THOUGHT] [PYTHON] from sympy import symbols, Eq, solve

a, b = symbols('a b') eq1 = Eq(b, -a/2) eq2 = Eq(a/6 - b/2, 2)

solution = solve((eq1, eq2), (a, b)) print(solution) [/PYTHON]

Tool Output
[PYTHON OUTPUT] {a: 24/5, b: -12/5} [/PYTHON OUTPUT]
Reasoning Process

\boxed{576}

Final Model Output
576

Comparative Analysis (P17) (Average across runs)

Avg Time Taken

Solar-Open-100B
632.5
K-EXAONE-236B-A23B
317.1
Llama-VARCO-8B-Instruct
57.7
Deepseek-V3.2
51.0
Kanana-2-30B-Thinking
41.5
K-EXAONE-236B-A23B
38.6
HCX-007(high)
38.3
Kanana-2-30B-Thinking-2601
33.1
Gemini-3-Pro-Preview
30.4
Solar-Pro-2 (31B)(high)
27.4
GPT-5.2 (high)
24.4
GPT-5.1 (high)
23.9
Grok-4.1-fast
23.5
A.X-4.0 (72B)
21.9
Claude-Opus-4.5
15.2
axk1
12.2
EXAONE-4.0.1-32B (high)
7.2

Avg Token Usage

K-EXAONE-236B-A23B
42879.3
Grok-4.1-fast
8530.0
Solar-Open-100B
7810.0
Kanana-2-30B-Thinking-2601
7014.5
Kanana-2-30B-Thinking
6949.0
Solar-Pro-2 (31B)(high)
5828.0
GPT-5.2 (high)
5763.0
Gemini-3-Pro-Preview
5699.0
Deepseek-V3.2
5224.0
GPT-5.1 (high)
4873.0
K-EXAONE-236B-A23B
4597.0
EXAONE-4.0.1-32B (high)
4374.0
HCX-007(high)
4370.0
Claude-Opus-4.5
3675.0
axk1
3283.0
A.X-4.0 (72B)
2081.0
Llama-VARCO-8B-Instruct
1031.0