In a geometric series, 8th term is -27 and 11th term is 81√3.
*Determine the sum of 1st 7th terms of the geometric series.
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Try to see the pattern here…
81= 3*3*3*3
27=3*3*3
9=3*3
3= Well just 3
1=3^0
Next we see that the series progresses to 1/3 I.e 3 raised to a negative indices of 1 or simply 3^-1.. So by this the next one on the series is 3^-2. Which is 1/9 thus the 7th term is 1/9.
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