PLZZ could someone help me out with this and explain
2 answers:
You might be interested in
Answer:
Step-by-step explanation:
1) if the given sequence is 9;5;1;-3, then a₁=9; a₂=5; a₃=1 and a₄=-3 and
2) the difference is -4.
3) if the difference is -4, then the correct answer is A: aₙ=aₙ₋₁ - 4.
The denominator in each term of the series is a square number, but neither 
nor 
are squares. So none of (1), (2), and (4) can be correct. The answer must be (3).