(a) Compute s3 of 9n8 n=1 (b) Estimate the error in using s3 as an approximation of the sum of the series. (I.e. use f(x)dx > r3) (c) Use n = 3 and | f(x)dæ < s < 8n + | F(z)dx Sn + n+1 to find a better estimate of the sum.

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