Question

if in a G.P., common ratio is 1 and s8=24, find the first term of the G.P.​

Answer 1

Answer:

a=3

Step-by-step explanation:

if we will use the formula of sum of n terms of GP

then the sum will be 0 and as given S8 =24 , then it would not satisfy the condition then here comes the idea of AP with d=0 and also using some common sense we can see that r=1 and 8 times a = 24 the a = 3

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