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Mathematics

Answered

Write an explicit formula for an, the nth term of the sequence 15, 7,-1,...

Answer :

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Answer:

aₙ = a₁ - 8 x (n-1)

Step-by-step explanation:

a₁ = 15

a₂ = 7 = a₁ - 8 x 1

a₃ = -1 = a₁ - 8 x 2

........

aₙ = a₁ - 8 x (n-1)

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