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Find the numerical answer to the summation given below.

sum_(n=0)^(95)(5n+7)
Answer:

Find the numerical answer to the summation given below.\newlinen=095(5n+7) \sum_{n=0}^{95}(5 n+7) \newlineAnswer:

Full solution

Q. Find the numerical answer to the summation given below.\newlinen=095(5n+7) \sum_{n=0}^{95}(5 n+7) \newlineAnswer:
  1. Separate Summation Parts: To find the sum of the series, we can separate the summation into two parts: the summation of 5n5n from n=0n=0 to n=95n=95 and the summation of 77 from n=0n=0 to n=95n=95.
  2. Find Sum of 55n Series: First, let's find the sum of the arithmetic series 5n5n. The sum of an arithmetic series is given by the formula S=n2(a1+an)S = \frac{n}{2}(a_1 + a_n), where nn is the number of terms, a1a_1 is the first term, and ana_n is the last term.
  3. Calculate Sum of 5n5n: The first term a1a_1 when n=0n=0 is 5(0)=05(0) = 0, and the last term ana_n when n=95n=95 is 5(95)=4755(95) = 475. The number of terms is 950+1=9695 - 0 + 1 = 96.
  4. Calculate Sum of 77: Now we can calculate the sum of the arithmetic series 5n5n: S=(962)(0+475)=48×475S = (\frac{96}{2})(0 + 475) = 48 \times 475.
  5. Add Two Sums: Calculating the sum gives us S=48×475=22800S = 48 \times 475 = 22800.
  6. Find Total Sum: Next, we calculate the sum of the constant 77 added 9696 times (from n=0n=0 to n=95n=95). This is simply 77 multiplied by the number of terms, which is 9696.
  7. Find Total Sum: Next, we calculate the sum of the constant 77 added 9696 times (from n=0n=0 to n=95n=95). This is simply 77 multiplied by the number of terms, which is 9696.Calculating this sum gives us 7×96=6727 \times 96 = 672.
  8. Find Total Sum: Next, we calculate the sum of the constant 77 added 9696 times (from n=0n=0 to n=95n=95). This is simply 77 multiplied by the number of terms, which is 9696.Calculating this sum gives us 7×96=6727 \times 96 = 672.Finally, we add the two sums together to find the total sum of the series: 2280022800 (sum of 5n5n) + 672672 (sum of 77).
  9. Find Total Sum: Next, we calculate the sum of the constant 77 added 9696 times (from n=0n=0 to n=95n=95). This is simply 77 multiplied by the number of terms, which is 9696.Calculating this sum gives us 7×96=6727 \times 96 = 672.Finally, we add the two sums together to find the total sum of the series: 2280022800 (sum of 5n5n) + 672672 (sum of 77).Adding these together gives us the final sum: 969611.

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