The nth term of a geometric sequence is 3(5^n-1)
a) Find the first term
b) Find the 5th term
Attachments:
Answers
Answered by
1
Answer:
a)
Let n = 1
First term = 3(5^1 - 1)
First term = 3(5 - 1)
First term = 3 x 4
First term = 12
b)
Let n = 5
Fifth term = 3(5^5 - 1)
Fifth term = 3(3125 - 1)
Fifth term = 3 x 3124
Fifth term = 9372
Please mark this answer as brainliest
a)
Let n = 1
First term = 3(5^1 - 1)
First term = 3(5 - 1)
First term = 3 x 4
First term = 12
b)
Let n = 5
Fifth term = 3(5^5 - 1)
Fifth term = 3(3125 - 1)
Fifth term = 3 x 3124
Fifth term = 9372
Please mark this answer as brainliest
Similar questions