Question

Math Analysis
Find the indicated term of the geometric sequence
t1=-5, r=1/4. Find t4 :)

Answer 1

are you sure its and arithmetic series... as you have given a letter r which stands for the common ratio in a geometric series

Answer 2

yes.

Answer 3

sorry it's
geometric sequence xD

Answer 4

then a term in a geometric series is

\[T _{n} = ar^{n -1}\]

you have a = -5, r = 1/4 and n = 4

just substitute and evaluate

\[T _{4} = -5 \times (\frac{1}{4})^{ 4-1}\]

Answer 5

ok, ty <33