Plez help Consider the infinite geometric series below. a. Write the first 4 terms of the series

b. Does the series diverge or converge?

c. If the series has a sum, find the sum.

[infinity]

∑ (−2)^n-1

n=2

I will give brainiest to you

Go to Wikipedia.com to get answer

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?