2+7+12+....+(5n - 3) =n/2 (5n - 1) | Mathematical Induction @EAG
2+7+12+.....+(5n - 3) = n/2 (5n - 1) @EAG

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a+ar+ar²+.....upto n terms = a(rⁿ - 1) / r-1 | Mathematical Induction @Elite Academy, Guntur

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2+7+12+...+(5n-3)=n(5n-1)/2 #MathematicalInduction #Algebra L428

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![a + (a+d) + (a+2d) + ....upto n terms = n/2 [2a +(n-1)d] | Mathematical Induction @Elite Academy, Guntur](https://i.ytimg.com/vi/rsqbcNZ1fF4/hqdefault.jpg?sqp=-oaymwEjCNACELwBSFryq4qpAxUIARUAAAAAGAElAADIQj0AgKJDeAE=&rs=AOn4CLCuJpMxA5cj4EvrcRCdW4Zja5sKtQ)
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a + (a+d) + (a+2d) + ....upto n terms = n/2 [2a +(n-1)d] | Mathematical Induction @Elite Academy, Guntur

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Prove that (1 + 3/1) (1 + 5/4) (1 + 7/9) ..... (1 + 2n+1/n^2) = (n + 1)^2

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