Question

At least one of the answers above is NOT correct. (1 point) Each of the following statements is an attempt to show that a given series is convergent or divergent using the Comparison Test (NOT the Limit Comparison Test.) For each statement, enter C (for "correct") if the argument is valid, or enter I (for "incorrect") if any part of the argument is flawed. (Note: if the conclusion is true but the argument that led to it was wrong, you must enter l.) , and the series :.2 co 1. For all n> 2 converges, so by the < ' n2-4 n2 Comparison Test, the series converges. conve 2. For all n converges, so by the 1 , 2n3 , arctan(n) converges Comparison Test, the series j- aretani)2and ths 2 < , and the seriesnverges, so by the n3-2 Comparison Test, the series Σ n-2 converges n3-2 〉 름 , and the series Σ 4. For all n 〉 2, diverges, so by the Comparison Test, the series Σ diverges. 5. For all n 〉 1 , ,In( 〈 - diverges, so by the Comparison nln(n) n , Test, the series n In(a) dIVerges. In(n)1 6. For all n > 2, >, and the series converges, so by the Comparison Test, the series converges.

Answer 1

VA 2.12 3. Te