"In an increasing G.P. , the sum of the first and the last term is 66, the product of the second and the last but one is 128 and the sum of the terms is 126. How many terms are there in the progression?"
Пікірлер: 4
@sadchic Жыл бұрын
Nicely explanatied
@arcadegamingpro80103 жыл бұрын
Very nicely explained thanks
@randomd9800 Жыл бұрын
6:13; directly could have aken 32 = 2^5 and hen equated and solved; instead of solving Sn