Given that the series is convergent, what is the minimum number of terms that must be summed in order for the error to be less than 0.1?

Question

Given that the series  is convergent, what is the minimum number of terms that must be summed in order for the error to be less than 0.1?

	3
	4
	5
	6

Answer 1

error E < 1/(2n + 1) < 0.1; 2n + 1 > 10; 2n > 9, n > 4.5. So n_min = 5.