Question: 9. Let a, b be real numbers with a < b. If 0 < t < 1, show that a < ta + (1

9. Let a, b be real numbers with a < b. If

0 < t < 1, show that a < ta + (1

9. Let a, b be real numbers with a < b. If 0 < t < 1, show that a < ta + (1 t)b < b

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