=t₁S = {3 +; = {3+1 ²+/2 = ne ¡:neN}. Prove that sup (S) = 4.

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A:

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A: Solution:-

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A: Topic:- derivatives

Q: Assume that (8) ∞∑n=1nanxn−1=∞∑n=0anxn∑n=1∞nanxn−1=∑n=0∞anxn for all x, and determine what this…

A: