n Prove by induction that Σ (− 1) ¹;² = (-1)”n(n+1) 2 i=1 n Prove that Σ i=1 1 i(i+1) = n n+1

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Q: Which of the following is additive inverse of 12mod8? a. 90 b. 92 c. 87 d. 66 a Ob C

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Q: Use of the If matrix graphing inverse possible. 長语(学) 313 (0)/4) (4) capabilitie utility matrix 13 G

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Q: (17) Let f(x) = e. Then • f'(0) = • f'(x) = ● That is, (18) I d da MTH 32

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Q: Let an be an odd integer for each integer n ≥ 1. Prove that if n is odd, then the sum Σα; is odd j=1…

A: Given : an be an odd integer for each n≥1 To show : ∑j=1naj is odd if n is odd.