Rowe Lee
04/04/2023 · Senior High School

u5: Biết rằng, giới hạn \( L=\lim _{x \rightarrow+\infty} \frac{(2-a) x-3}{x-\sqrt{x^{2}+1}}=+\infty \). Hãy tính giá trị nhỏ nhất của biều thức \( P=a^{2}-2 a+4 \) là \( [\sqrt{A \tau+1}-1 \)

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Giá trị nhỏ nhất của biểu thức \( P = a^{2} - 2a + 4 \) là **4**.

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