1-1 y=2x+2 y=-x-1
1-2 루트5
1-3 2루트6-4
2-1 2025
2-2 1944
2-3 1-1/k+1<1-1/k+(1/k+1)² 증명
3-1 e^x(sinx-cosx)+c
3-2 (e^(n+1)pi+e^npi)²
3-3 16pi⁷

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