need a second opinion....

Find the sum of the first n terms of the geometric sequence for the values of a1 and r.

n = 4, a1 = 228, r = 4.8

my answer: 31,790.496 correct or no?? i couldnt find any help video and doesnt explain this in my book,so i just used an online calc using Sn instead of An. is that how i solve this??

Question

need a second opinion....

Find the sum of the first n terms of the geometric sequence for the values of a1 and r.

n = 4, a1 = 228, r = 4.8

my answer:  31,790.496	correct or no?? i couldnt find any help video and doesnt explain this in my book,so i just used an online calc using Sn instead of An. is that how i solve this??

anonymous · Answer

I think you are correct but I could be wrong.

anonymous · Answer

hmm alright