What Is The Formula Of 2,1,0,-1

What is the formula of 2,1,0,-1

 

Answer:

an = -n + 3

Step-by-step explanation:

The arithmetic sequence general rule or formula:

an = a₁ + (n-1)(d)

Where:

an = last term  ⇒ -1

a₁ = first term  ⇒ 2

d = common difference  ⇒ (1-2 = 0-1) ⇒ -1

n = nth term in the sequence or the number of terms  ⇒  unknown

Find the formula or general rule for 2,1,0,-1:

an = 2 + (n-1)(-1)

an = 2 + 1 - n

an = 3 - n

an = -n + 3


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