Problem Analysis #1

Motif 3 · Run 1

Correct
10.00s
Tokens not reported

Manual web chat · medium response level. The saved transcript may include the prompt and web interface text.

Problem Statement

This is a Korean CSAT mathematics multiple-choice problem. Solve it and put only the correct choice symbol, one of ①, ②, ③, ④, ⑤, inside \boxed{}.

Problem 2 For the functionf(x) = 3x 3 + 4x+ 1, evaluate lim h→0 f(1 +h)−f(1) h . [2 points] ①7 ②9 ③11 ④13 ⑤15

Ground Truth
Recorded model response / solution
Reasoning Process

대화가 없습니다

로그인 회원가입 You are solving a Korean CSAT mathematics problem. Reason carefully, but the final response must contain exactly one final answer inside \boxed{}.

For multiple-choice problems, put only one of ①, ②, ③, ④, ⑤ inside \boxed{}. For short-answer problems, put only the final integer inside \boxed{}. Do not use external tools.

Problem 2 For the functionf(x) = 3x 3 + 4x+ 1, evaluate lim h→0 f(1 +h)−f(1) h . [2 points] ①7 ②9 ③11 ④13 ⑤15 더보기

The limit is the definition of the derivative of 𝑓 f at 𝑥

1 x=1:

lim ⁡ ℎ → 0 𝑓 ( 1 + ℎ ) − 𝑓 ( 1 ) ℎ

𝑓 ′ ( 1 ) . h→0 lim ​

h f(1+h)−f(1) ​

=f ′ (1).

For 𝑓 ( 𝑥 )

3 𝑥 3 + 4 𝑥 + 1 f(x)=3x 3 +4x+1,

𝑓 ′ ( 𝑥 )

9 𝑥 2 + 4 , f ′ (x)=9x 2 +4,

so

𝑓 ′ ( 1 )

9 ( 1 ) 2 + 4

9 + 4

f ′ (1)=9(1) 2 +4=9+4=13.

Thus the correct choice is ④.

\boxed{④}

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Final Model Output

Comparative Analysis (P1) (Average across runs)

Averages use reported measurements only. Missing usage is not treated as zero.

Avg Time Taken

Solar Pro 4
15.5
Motif 3
8.7
Kimi K3
7.7
K-EXAONE-2
0.6

Avg Token Usage

Solar Pro 4
853.3
Kimi K3
432.7
K-EXAONE-2
308.3
    CSAT 2026 · Problem 1 · Motif 3 | EntropyMath