Q. Find the numerical answer to the summation given below.n=0∑68(6n+3)Answer:
Separate Summation Parts: To find the sum of the series, we can separate the summation into two parts: the summation of 6n from n=0 to 68 and the summation of 3 from n=0 to 68.
Find Sum of 6n Series: First, let's find the sum of the arithmetic series 6n. The sum of an arithmetic series is given by the formula S=2n×(a1+an), where n is the number of terms, a1 is the first term, and an is the last term.
Calculate 6n Part: The first term when n=0 is 6×0=0, and the last term when n=68 is 6×68=408. There are 69 terms in total because we start counting from n=0.
Calculate Constant Term: Now we can calculate the sum of the 6n part: S6n=269×(0+408)=269×408=34.5×408=14076.
Calculate Total Sum: Next, we calculate the sum of the constant term 3, which is added 69 times (once for each value of n from 0 to 68). This sum is simply 3×69.
Calculate Total Sum: Next, we calculate the sum of the constant term 3, which is added 69 times (once for each value of n from 0 to 68). This sum is simply 3×69.Calculating the sum of the constant term: S3=3×69=207.
Calculate Total Sum: Next, we calculate the sum of the constant term 3, which is added 69 times (once for each value of n from 0 to 68). This sum is simply 3×69.Calculating the sum of the constant term: S3=3×69=207.Finally, we add the two sums together to find the total sum of the series: Total Sum = S6n+S3=14076+207.
Calculate Total Sum: Next, we calculate the sum of the constant term 3, which is added 69 times (once for each value of n from 0 to 68). This sum is simply 3×69.Calculating the sum of the constant term: S3=3×69=207.Finally, we add the two sums together to find the total sum of the series: Total Sum = S6n+S3=14076+207.Adding the two sums gives us the final answer: Total Sum = 14283.
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