alondramoroyoqui alondramoroyoqui

11-04-2020
Mathematics

contestada

If the fourth term of a geometric progression is
—81/2 and the fifth term is 243/2 find a1 and r ?

Respuesta :

ghanami ghanami

12-04-2020

Answer:

Step-by-step explanation:

hello :

the common ratio is : A5/A4 = (-243/2)/-81/2) =(-243/2)×(2/-81) =243/81 =3

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