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Pre-Calculus G11 Use mathematical induction to prove the formula for every positive integer n. 9. 2 + 4 + 6+8+...+ 2n= n(n+ 1) 10. 2+7+12+17+

Pre-Calculus G11

Use mathematical induction to prove the formula for every positive integer n. 9. 2 + 4 + 6+8+...+ 2n= n(n+ 1) 10. 2+7+12+17+ ... +(5n-3) =-(5n-1) 11. 1+2+2 +23 +... + 2"-1 =2"-1

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