Find any of the values a1, d, an, n, or SIn that are missing from the arithmetic sequence. 7 117 a1=g,n=26,325=? <:> The value of a26 is D. (Simplify your answer. Type an integer or a fraction.) Find the sum of the first n terms of the indicated geometric sequence with the given values. 27 + 2 . . . The sum is (Simplify your answer.)Find the sum of the first 14 terms of the geometric sequence shown below. 3, 12, 48, 192, .. . . . . The sum of the first 14 terms isDetermine the sum of the first six terms of the geometric sequence where a = 2 and r= - 1. . . . The sum isDetermine the sum of the first six terms of the geometric sequence where a = 2 and r= - 1. . . . The sum isLet a1, a2, a3,..., an,... be a geometric sequence. Find S, and S.. . a1 = 400, r = 0.8 . . . S10 (Type an integer or decimal rounded to two decimal places as needed.)