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# Maths-Use an algebraic expression to respresent....

幫幫我計...要步驟''吾該!

1. 2,9,16,23

a) next 3 terms

b) use an algebraic expression to respresent the general term of the sequences.

2. 64,32,16,8

a) next 3 terms

b) use an algebraic expression to respresent the general term of the sequences.

### 1 Answer

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- ↑神奇化妝師↓Lv 61 decade agoFavorite Answer
1. 2,9,16,23

a) next 3 terms

b) use an algebraic expression to respresent the general term of the sequences.

1st term=2

common different=7

next 3 terms : 30,37,44

general term=2+(n-1)(7)=7n-5

2. 64,32,16,8

a) next 3 terms

b) use an algebraic expression to respresent the general term of the sequences.

1st term=62

common ratio=0.5

next 3 terms : 4,2,1

general term=(64)(2)^(1-n)=2^(7-n) OR [0.5^(n-6)]

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