GP Caluculus
posted by Watermelon .
The third term of a geometric progression is 16. The sum of the third term and the fouth term is 8. Find
(a)the first term and the common ration of the progression
(b)the sum of infinity of the progression

What is Caluculus ?
I thought you would have at least corrected your spelling from the last post after it was pointed out to you.
see post in
http://www.jiskha.com/display.cgi?id=1322746626