Math, asked by alexanderfergison, 1 year ago

A sequence is defined by the recursive formula f (n + 1) = f(n) – 2. If f(1) = 18, what is f(5)?


Answers

Answered by aqibkincsem
6

Put n= 2 to get f (2) = 16, Similary f (5) = 10. In general, the formula states that the next term in the sequence is generated by subtracting two from the previous one.

We know that the first term is 18, so we have f(1)=18, f(2)=f(1)−2=18−2=16, f(3)=f(2)−2=16−2=14, f(4)=f(3)−2=14−2=12, f(5)=f(4)−2=12−2=10.

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