Q. Find the numerical answer to the summation given below.n=1∑95(2n+1)Answer:
Identify Arithmetic Series: To solve the summation of the sequence, we need to find the sum of the arithmetic series. The given series is an arithmetic series because each term increases by a constant difference, which is 2 in this case. The first term of the series when n=1 is 2(1)+1=3, and the last term when n=95 is 2(95)+1=191. The sum of an arithmetic series can be found using the formula S=2n×(a1+an), where S is the sum of the series, n is the number of terms, a1 is the first term, and an is the last term.
Determine Number of Terms: First, we need to determine the number of terms in the series. Since the series starts at n=1 and ends at n=95, there are 95 terms in total.
Apply Sum Formula: Now we can use the sum formula for an arithmetic series: S=2n×(a1+an). Plugging in the values we have S=295×(3+191).
Calculate First and Last Term: Perform the calculation inside the parentheses first: 3+191=194.
Perform Multiplication: Now multiply the number of terms divided by 2 with the sum of the first and last term: S=295×194.
Find the Sum: Calculate the multiplication: S=47.5×194.
Find the Sum: Calculate the multiplication: S=47.5×194.Perform the multiplication to find the sum: S=9215.
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