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vfiekz [6]
3 years ago
7

Find the 9th term in the sequence 9,-18,36

Mathematics
1 answer:
ycow [4]3 years ago
4 0

Answer:

Step-by-step explanation:

hello :

the sequence 9,-18,36 is geometric when the common ratio is:

r= 36/-18=-18/9=-2

let (An) this sequence the n-ieme term is : An=A1×r^(n-1).....A1=9 and n=9

A9=9×(-2)^8 =2304

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