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27. μ’ννλ©΄ μλ₯Ό μμ§μ΄λ μ $\mathrm{P}$μ μκ° $t \ (t>0)$μμμ μμΉκ° 곑μ $y = x^2$κ³Ό μ§μ $y = t^2 x - \frac{\ln t}{8}$κ° λ§λλ μλ‘ λ€λ₯Έ λ μ μ μ€μ μΌ λ, μκ° $t=1$μμ $t=e$κΉμ§ μ $\mathrm{P}$κ° μμ§μΈ 거리λ? [3μ ] |
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\begin{itemize} |
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\item[1] $\frac{e^4}{2} - \frac{3}{8}$ |
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\item[2] $\frac{e^4}{2} - \frac{5}{16}$ |
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\item[3] $\frac{e^4}{2} - \frac{1}{4}$ |
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\item[4] $\frac{e^4}{2} - \frac{3}{16}$ |
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\item[5] $\frac{e^4}{2} - \frac{1}{8}$ |
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\end{itemize} |