Problem Analysis #19

32.76s
4,356 toks
Problem Statement

For all x>0x > 0, let y1(x)y_1(x), y2(x)y_2(x), and y3(x)y_3(x) be the functions satisfying\frac{dy_1}{dx} - (\sin x)^2 y_1 = 0, \quad y_1(1) = 5,$$$$\frac{dy_2}{dx} - (\cos x)^2 y_2 = 0, \quad y_2(1) = 13,$$$$\frac{dy_3}{dx} - \left(\frac{2 - x^3}{x^3}\right) y_3 = 0, \quad y_3(1) = 35e,respectively. Find the value oflimx0+y1(x)y2(x)y3(x)+989xx3esinx.\lim_{x \to 0^+} \frac{y_1(x)y_2(x)y_3(x) + 989x}{x^3 e \sin x}.\

Ground Truth
989
Execution Trace
Reasoning Process

[THOUGHT] Solve each first-order linear ODE: y' = f(x)y gives y(x)=y(1)*exp(∫_1^x f(t)dt). Then multiply y1y2y3, simplify, and evaluate the given limit as x→0+. Use Python/Sympy to confirm the asymptotics and the limit (likely +∞). [/THOUGHT] [PYTHON] import sympy as sp

x=sp.symbols('x', positive=True)

define solutions via integrals

t=sp.symbols('t', positive=True) y1 = 5sp.exp(sp.integrate(sp.sin(t)**2, (t,1,x))) y2 = 13sp.exp(sp.integrate(sp.cos(t)2, (t,1,x))) y3 = 35sp.Esp.exp(sp.integrate((2-t3)/t**3, (t,1,x)))

prod = sp.simplify(y1y2y3) expr = sp.simplify((prod + 989x)/(x**3sp.E*sp.sin(x)))

print("y1:", sp.simplify(y1)) print("y2:", sp.simplify(y2)) print("y3:", sp.simplify(y3)) print("product:", prod) print("limit:", sp.limit(expr, x, 0, dir='+')) [/PYTHON]

Tool Output
[PYTHON OUTPUT] y1: 5*exp(x/2 - sin(2*x)/4 - 1/2 + sin(2)/4) y2: 13*exp(x/2 + sin(2*x)/4 - 1/2 - sin(2)/4) y3: 35*exp(-x + 3 - 1/x**2) product: 2275*exp(2 - 1/x**2) limit: oo [/PYTHON OUTPUT]
Reasoning Process

[THOUGHT] The computed limit is (+\infty), so it diverges. \boxed{\infty}

Final Model Output
\infty

Comparative Analysis (P19) (Average across runs)

Avg Time Taken

Gemini-3-Pro-Preview
894.8
K-EXAONE-236B-A23B
849.6
Solar-Open-100B
262.8
Deepseek-V3.2
239.3
K-EXAONE-236B-A23B
204.9
Llama-VARCO-8B-Instruct
162.1
Grok-4.1-fast
136.4
Solar-Pro-2 (31B)(high)
107.9
Kanana-2-30B-Thinking
76.7
Kanana-2-30B-Thinking-2601
68.5
GPT-5.1 (high)
51.0
A.X-4.0 (72B)
43.3
HCX-007(high)
37.2
GPT-5.2 (high)
32.8
Claude-Opus-4.5
29.2
axk1
14.8
EXAONE-4.0.1-32B (high)
5.3

Avg Token Usage

K-EXAONE-236B-A23B
70061.3
K-EXAONE-236B-A23B
41646.0
Solar-Open-100B
39496.0
Gemini-3-Pro-Preview
28664.0
Grok-4.1-fast
20203.0
Solar-Pro-2 (31B)(high)
17442.0
Kanana-2-30B-Thinking-2601
15619.5
Deepseek-V3.2
14643.0
Kanana-2-30B-Thinking
14612.0
Llama-VARCO-8B-Instruct
11147.0
A.X-4.0 (72B)
6621.0
GPT-5.1 (high)
6113.0
axk1
5991.0
Claude-Opus-4.5
5843.0
HCX-007(high)
4628.0
GPT-5.2 (high)
4356.0
EXAONE-4.0.1-32B (high)
4114.0