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Find the numerical answer to the summation given below.

sum_(n=0)^(72)(6n+3)
Answer:

Find the numerical answer to the summation given below.\newlinen=072(6n+3) \sum_{n=0}^{72}(6 n+3) \newlineAnswer:

Full solution

Q. Find the numerical answer to the summation given below.\newlinen=072(6n+3) \sum_{n=0}^{72}(6 n+3) \newlineAnswer:
  1. Calculate number of terms: We need to find the sum of the arithmetic series given by the formula 6n+36n+3 from n=0n=0 to n=72n=72. The general formula for the sum of an arithmetic series is S=n2×(a1+an)S = \frac{n}{2} \times (a_1 + a_n), where nn is the number of terms, a1a_1 is the first term, and ana_n is the last term.
  2. Find first term: First, we calculate the number of terms in the series. Since we start at n=0n=0 and go to n=72n=72, we have 720+1=7372 - 0 + 1 = 73 terms.
  3. Find last term: Next, we find the first term of the series by substituting n=0n=0 into the formula (6n+3)(6n+3). This gives us a1=6×0+3=3a_1 = 6\times 0 + 3 = 3.
  4. Use sum formula: Now, we find the last term of the series by substituting n=72n=72 into the formula (6n+3)(6n+3). This gives us a72=6×72+3=435a_{72} = 6\times72 + 3 = 435.
  5. Perform calculation: We can now use the sum formula for an arithmetic series: S=n2×(a1+an)S = \frac{n}{2} \times (a_1 + a_n). Substituting the values we have, S=732×(3+435)S = \frac{73}{2} \times (3 + 435).
  6. Multiply by 732\frac{73}{2}: Perform the calculation inside the parentheses first: 3+435=4383 + 435 = 438.
  7. Perform final multiplication: Now, multiply 438438 by 732\frac{73}{2} to find the sum of the series: S=732×438=36.5×438S = \frac{73}{2} \times 438 = 36.5 \times 438.
  8. Perform final multiplication: Now, multiply 438438 by 732\frac{73}{2} to find the sum of the series: S=732×438=36.5×438S = \frac{73}{2} \times 438 = 36.5 \times 438.Finally, perform the multiplication to find the sum: S=36.5×438=15987S = 36.5 \times 438 = 15987.

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