given 1,0.5,4,o.25,7,0.125,10

Question

assume this pattern continues consistently
1.write down the 33th term in this sequence
2.determine the sum of the first 24 terms in this sequence.give the answer to five decimal place

2.1.in a geometric sequence the fourth term is root of 3 and the seventh term is root of 81 determine the first term and the constant ratio

Answer 1

#1
for n odd, Tn = 3n-2
For n even, Tn = 1/2^n

#2
r^3 = T7/T4 = √81/√3 = √27
r = √3
Now you can find a