How many integers n among [0,10] are there such that the equationx −− − + − = 1 22 3 x xn has ex

問題詳情

77. How many integers n among [0,10] are there such that the equationx −− − + − = 1 22 3 x xn has exactly two solutions?
(A) 8
(B) 9
(C) 10
(D) 1113

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