Q. Find the value of the following expression and round to the nearest integer:n=0∑3350(1.01)nAnswer:
Given Geometric Series: We are given a geometric series with the first term a=50 and the common ratio r=1.01. The sum of a finite geometric series can be found using the formula Sn=(1−r)a(1−rn), where n is the number of terms. In this case, n=34 because the series starts at n=0 and goes up to n=33.
Calculate rn: First, we calculate rn, which is (1.01)34. This is the common ratio raised to the power of the number of terms.
Substitute values into formula: Using a calculator, we find that (1.01)34 is approximately 1.3976. This is the value of the common ratio raised to the power of the number of terms.
Simplify the expression: Now we can plug the values into the sum formula for a geometric series: Sn=a(1−rn)/(1−r). Substituting the values, we get S34=50(1−1.3976)/(1−1.01).
Perform calculations: Simplifying the expression, we get S34=50(1−1.3976)/(−0.01). This simplifies to S34=50(−0.3976)/(−0.01).
Round the final answer: Performing the calculations, we get S34=50×39.76. This equals 1988.
Round the final answer: Performing the calculations, we get S34=50×39.76. This equals 1988.Finally, we round the result to the nearest integer. Since the decimal part is less than 0.5, we round down, so the final answer is 1988.
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