Please answer all neatly and legibly

Which of the following series converge absolutely, which converge conditionally and which diverge? (-1)On 1. En=2 13-5 2. En=o (-1)"Vn2+1 n2+n+8 3. En=(1)" ( (-1)n+1 4. En=1 Vn+1+Vn 5. En=2(-1)n+141 n Inn On=3 (-1 )n 30-3 5n-10 7 En=(-1)nting (-1)n 8. Zn=1 5 9n4+3