how many terms of a geometric progression ar^n where a=r=3 is required for the sum to be equal to 120?
a. 2
b. 3
c. 4
d. 5
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may it's option B
The first term of an arithmetic progression is 3 and the 10 th term is 21. ... How many terms are there in 2,4,8,16,………..1024? .... Exp. Sum of the first n terms of a G.P = a
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