Asked by Charity
The second and seventh term of a G.P are 18 and 4374 respectively.
Find the common ration
Sum of the 4th and 8th terms
Sum of the first 10th terms
Find the common ration
Sum of the 4th and 8th terms
Sum of the first 10th terms
Answers
Answered by
mathhelper
ar = 18
ar^6 = 4374
divide them:
r^5 243 = 3^5
so r = 3
now you can find a, and using your definitions all the other parts asked for
ar^6 = 4374
divide them:
r^5 243 = 3^5
so r = 3
now you can find a, and using your definitions all the other parts asked for
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