Determine the number of terms n in each geometric series.
13) a1 = 0.75, r = 4, Sn =1023.75
1 answer:
Answer:
Number of terms: n=6
Step-by-step explanation:
We are given:
a₁ = 0.75
r = 4
Sₙ = 1023.75
We need to find number of terms i.e n
The formula used will be:
Putting values and fining n

We know that 

Using Exponent rule: 

So, Number of terms: n=6
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