What is the power series expression for f(x)=x^2sin(x). Find the radius of convergence too. I know that the power series of sinx is (-1)^n (x^(2n+1))/(2n+1)! But what about the x^2? Do you just take the derivative of it?
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If then (from the Distributive Law). To check the radius of convergence use the ratio test.
If... (1) ... multiplying both therms of (1) by You obtain... (2) Merry Christmas from Italy
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