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You can find additive inverse to find integers and their opposites closed under addition.
Answer:
Ar = ¼√3 As
Step-by-step explanation:
Area of an equilateral triangle is:
Ar = ¼√3 s²
Area of a square is:
As = s²
Substituting:
Ar = ¼√3 As
Answer:



Step-by-step explanation:
We are given the following recursive formula:

And consider 
a2

a3

a4

Answer:
1
Step-by-step explanation: