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Mathematics, 13.10.2020 15:01 jachecj3269
(n+2)c(2) ×(n)c(3)=210
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Mathematics, 22.06.2019 01:00, jazzytazzyyy
Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]
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(n+2)c(2) ×(n)c(3)=210...
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