find term of in series

Start at 8 and count by 100's. What would be the fourth term in the series? => 318 or 418 or 408 or 308..

The sum of an infinite geometric series is 36 times the first term. What is its common ratio? => 1 35 or 35 36 or 36 35 or 1 36..

In an arithmetic series whose first term is 168, n th term is - 8 with common difference as - 4. Find the sum of first n terms of the series. => 3610 or 3590 or 7200 or 3600..

In an arithmetic series, the sum of first 16 terms is 768 and the common difference is 10. What is the first term? => -27 or -7 or -17 or -37..

In an arithmetic series, the sum of first 32 terms is 1312 and the common difference is 6. What is the first term? => -40 or -52 or -58 or -46..

Summary - (i) Let X be a set of numbers and f : N n X be a function, then the ordered set {f(1), f(2),...., f(n)} is called a finite sequence in X. (ii) Let X be a set of numbers and f : N X be a function, then the ordered set {f(1), f(2),....} is called an infinite sequence in X. If {T n } is a se..

Find the sum to n terms in the series. ( a - 9) + ( a - 11) + ( a - 13) + ... => n ( 2 a + 2 n - 1 6 ) 2 or n ( 2 a + 2 n + 1 6 ) 2 or n ( 2 a - 2 n - 1 6 ) 2 or n ( 2 a - 2 n + 1 6 ) 2..

In a geometric series a 1 = 243 and 6 th term is 32. Find the sum of the first 6 terms. => 665 or 32 or 825 or 275..

Find the sum to n terms of the geometric series. 1 + 4 + 16 + 64 + ... => 1 3 (4 n - 1) or 4 n - 1 or n 2 [ 2 + ( n - 1 ) 3 ] or 1 3 (1 - 4 n )..

The sum of the first 10 terms of the arithmetic series 4 + 6 + 8 + 10 + ... is ______. => 140 or 120 or 40 or 130..