What Is The Solution Of -1,1,-1,1,-1 Arithmetic Sequences ?

What is the solution of -1,1,-1,1,-1 arithmetic sequences ?

 

Answer:

an=-(-1)^n-1

Step-by-step explanation:

The Sequence is Geometric Sequence

an=a1(r)^n-1

r=1/-1

an= -1(-1)^n-1

an=-(-1)^n-1