Question

find the first term of gp .whose second term is 2 and sum to infinity is 8​

Answer 1

Answer:

4

Step-by-step explanation:

ar=2,  

1−r

a

​  

=  

8

1

​  

. Eliminate r and we get

a  

2

−8a+16=0∴(a−4)  

2

=0 or a=4