Provethat 12- 22+ 32+... + (_l)n+1n2 = (_1)n+1n(n+ 1)/2 for alln EN
Chapter 1, Problem 5(choose chapter or problem)
Provethat 12- 22+ 32+... + (_l)n+1n2 = (_1)n+1n(n+ 1)/2 for alln EN.
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