Calculus 2: please help me solve these problems. Please show your work thank youGiven Answers:1: convergent2: convergent3: convergent4: convergent 5: 5 terms

In Exercises #1-4, determine whether the series converges or diverges. 1 8 (-1) 12-1 2n + 1 3. (-1)2-10/2 n=1 n=1 n OO 2. ( - 1 ) " n n=1 123 + 2 4. (-1)" sin n=1 5. How many terms of the below series are needed to approximate the sum with error less than 0.00005? (-1)2-1 no 6. Approximate the sum of 1072 with error less than 0.00005