Prove that if 21 Un, then 41 (u+l - u_1); and similarly, if 3 I Un, then 91 (u+l - u_1)
Chapter 14, Problem 3(choose chapter or problem)
Prove that if 21 Un, then 41 (u+l - u_1); and similarly, if 3 I Un, then 91 (u+l - u_1).
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