SOLUTION
Step 1 :
In question, we are asked to find the explicit formula of the Geometric Sequence.
Considering the Geometric Sequence,
- 0. 1 , 0. 04 , - 0.016 , 0.0064, -0.00256, ............
Step 2 :
We have that First Term, a = - 0. 1
Step 3 :
Using the nth term of the Geometric Sequence,