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Feliz [49]
4 years ago
13

A sequence is defined recursively using the formula f(n + 1) = –0.5 f(n) . If the first term of the sequence is 120, what is f(5

)?
Mathematics
1 answer:
balu736 [363]4 years ago
3 0
Hello,

f(1)=120\\
 f(2)=-\frac{1}{2}*120=-60\\ 
 f(3)=-\frac{1}{2} *(-60)=30\\ 
 f(4)=-\frac{1}{2} *(30)=-15\\ 
 f(5)=-\frac{1}{2} *(-15)=\frac{15}{2}\\

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