...impossible to express the whole until a particular value is given to n. Let I be the term required, then Hence, any term may be found by adding the product...Example. What is the 10th term of the series 3, 5, 7, 9, (fee. In this a = 3, r == 2, and n — 1=9. / = 3 + 9'cX2 = 21. In a decreasing series, r is negative....

...of the expression, as it is impossible to express the whole until a particular value is given to n. Hence, any term may be found by adding the product...series 3, 5, 7, 9, &c. In this a = 3, r = 2, and n — 1 =9. 1 = 3 + 9 X2 = 21. In a decreasing series, r is negative. .? Example. What is the 13th term...

...given to n. Let I be the term required, then Hence, any term may be found by adding the product oFthe common difference by the number of terms less one,...What is the 10th term of the series 3, 5, 7, 9, &c, [n this a = 3, r = 2, and ,n — 1=9. / = 3+9 X2 = 21. [na decreasing series, r is negative. f Example....

...impossible to express the whole until a particular value is given to n. Let I be the term required, then Hence, any term may be found by adding the product...difference by the number of terms less one, to the first terra. Example. What is the 10th term of the series 3, 5, 7, 9, &c. In this a = 3, r = 2, and n —...

...impossible to express the whole until a particular valuers given to n. Let I be the term required, then Hence, any term may be found by adding the product...5, 7, 9, &c. In this a = 3, r = 2, and n — 1=9. In a decreasing series, r is negative. Example. » What is the 13th term of the series 43, 45, 42,...

...Or, the sum of any increasing arithmetical series may be found, without considering the last term, by adding the product of the common difference by the number of terms tess one to twice the first term, and then multiplying the result by half the number of terms. And,...

...of the expression, as it is impossible to express the whole until a particular value is given to n. Hence, any term may be found by adding the product...9, &c. In this a = 3, r = 2, and n — 1=9. / = 3+9 X2 = 21. En a decreasing series, r is negative. Example. What is the 13th term of the series 48, 45,...

...impossible to express the whole until a particular value is given to n. Let I be the term required, then • Hence, any term may be found by adding the product of the ffi common difference by the number of terms less one, to the first term. Example. f What is the 10th...

...impossible to express the whole until"a particular value is given to n. Let / be the term required, then Hence, any term may be found by adding the product of the common difference by die number of terms less one, to the first term. Example. What is the 10th term of the series 3, 5,...

...impossible to express the whole until a particular value is given to ». Let I be the term required, then Hence, any term may be found by adding the product...9, &c. In this a = 3, r = 2, and n — 1=9. / = 3+9 X2=21. In a decreasing series, r is negative. Example. What is the 13th term of the series 48, 45,...