Solve the problem. Show the complete solution 1.) Find the sum of the first terms of the geometric sequence 1, 4, 16,... 2.) Find Sa if a1 = 8, a9 = 52 488 r= - 1 3.) Sum of first 50 terms of 4, 4, 4, 4, 4,... 4.) In -5, 5, -5, 5 -5, 5 find the S95 and S200