匈牙利大学本科申请入学考试（数学部分）德布勒森大学(2)
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- 发布时间：2020-04-02
f : R ›→ R, f (x) = tan .x Σ?
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18. What is the minimal value of the function g(x) = x2 − 4x + 5?
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19. How many 2-element subsets does the set {1, 2, 3, 4, 5, 6} have?
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20. How many 6-digit numbers can be made out of the digits 1, 2, 2, 3, 3, 4?
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