Determine if the following series are convergent or divergent. Justify your steps and state which test you are using. When necessary, make sure you check the hypotheses of the test that are satisfied before you apply it.(a)? (-1)^n*(1^n)(b)? 6^n/(5^n+8)(c)?n^3/(2n^4+3n+2)(d)?n!/(n+2)!(e)?cos(?n+5)/3^n