\f. Question 12 v Find the nth term of the geometric sequence whose initial term is (:51 : 3 and common ratio is 8. Your answer should be a function of 71 CL,\" Question 13 Calculate to sum of the first 8 terms of the following series: 63 189 - 14 + 21 - 2 + 4 Formula (ignore subscripts in this step but not in written work. Use S for Sn and a for a1.) Stocktake Type in the list of known variables, example x=1,y=2...: Substitute (use subscripts if necessary in this step. Answer should be an equation.) Solve (use subscripts if necessary in this step. Answer should be an equation.)0 Question 14 v Consider the following series: Question 1 Calculate the number of terms in this series Formula (ignore subscripts in this step but not in written work. Use A for an and a for G1.) Stocktake Type in the list of known variables, example x=1,y=2...: Substitute (use subscripts if necessary in this step) Solve :] (Answer sbouid be an equation: n : number) Question 2 Find the sum of the above series Formula [: (ignore subscripts in this step but not in written work. Use 3 for Sn and a for 04.) Stocktake Type in the list of known variables, example x=i,y=2...: :] Substitute :] (use subscripts if necessary in this step. Answer should be an equation.) Solve [j (use subscripts if necessary in this step. Answer should be an equation.) [5] \f0 Question 18 v 11 Find the infinite sum ofthe geometric sequence with a : 3,1\" : ? if it exists.Put DNE if it diverges. Does this series converge or diverge? O converges O diverges Question 19 Find the infinite sum of the geometric sequence with a = - 2, r = - AT NO if it exists. Put DNE if it diverges. Does this series converge or diverge? O converges O diverges Soo =. Question 20 > Find the infinite sum of the geometric sequence with a = 4, r = if it exists. Give your answer as an integer or reduced fraction. =Question 21 > n-1 Given the series n=1 Does this series converge or diverge? O converges O diverges If the series converges, find the sum:Question 22 3 3 Given the series 25 + . 125 625 Does this series converge or diverge? O converges O diverges If the series converges, find the sum:. Question 4 gn+2 Find the common ratio and write out the first four terms of the geometric sequence 10 a1: Question 7 Given the geometric sequence: 20, 50, 125, .. . Find an explicit formula for an, where the first term is a1 = 20. an Find a5 =0 Question 9 v