Write the first five terms of the geometric sequence. Determine the common ratio and write the oth term of the sequence as a function of n . 1. a, =5; ak+1=-Zak 2. .a , =60; ak+1 =:/2ak write... an expression for the with term of the. . geometric..ser. quence. Then.find. the indicated term! ...... 1. a, =1020;r=-1/2;2=4 Find..the Sum of the infinite geometric series. if possible. IF not. .possible, explain. .why. 1.3+ 3/ 4 + 3/16 + 3/64 + ... .. .... 2 2 -/2+ '/8- 1 / 32+ ... 3.6+8+32/3+ 128/q t ... 4. 2- 413 +8/9 - 16/27+