Question

Tentukan pola jujukan di bawahgm dengan menggunakan ungkapan algebra.
1) 2,4,8,16​

Answer 1

Given : 2 , 4 , 8 , 16

To Find : Sequence

Solution:

2 , 4 , 8., 16

first term = 2

second term = 4

third term.= 8

fourth term = 16

4/2 = 8/4 = 16/8 = 2

there is a common ratio of 2

Hence this is an GP

nth term of GP is given by

ar^(n-1)

a = 2 , r = 2

hence 2.2^(n-1)

= 2^n

nth term of given sequence is 2^n

Tn =2^n is sequence

its geometric progression

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