Question
A sequence is defined recursively by the formula f(n+1)=-2f(n). The first term of the sequence is -1.5. Whis is the next term in the sequence?
Asked by: USER2141
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142 Answers
Answer (142)
We are told that f(1) = -1.5, and that f(n+1) = -2f(n).
Then: f(2) = -2f(1) = -2(-1.5) = +3 (answer)
Then: f(2) = -2f(1) = -2(-1.5) = +3 (answer)