百度试题 结果1 题目Write the formula for the nth term of the geometrie series.a_1=1 r=-2 相关知识点: 试题来源: 解析 a_n=(-2)^(n-1) 反馈 收藏
The formula to find the nth term of an arithmetic progression is given by,an= a + ( n – 1 ) dwhere an = nth term,a = first term,n = position of the termd = common differenceNth Term of Arithmetic ProgressionThe formula an = a + ( n – 1 ) d is used to get the general...
百度试题 结果1 题目Find a formula for the nth term of the arithmetic sequence a_3=16, a_4=20 相关知识点: 试题来源: 解析 a_n=4n+4 反馈 收藏
Find the formula for the nth term, and find the indicated term for each arithmetic sequence.a) 3, 5, 7, ; t_(30)b) -2, -6, -10, ; t_(25)c) -4, 3, 10, ; t_(18) 相关知识点: 试题来源: 解析 a) The n^((th)) term and value of t_(30) are 2n+1 and 61 ...
【题目】Explain why the nth term of the sequenceis given by S- S, and hence find aformula for the nth term in terms of p andq 相关知识点: 试题来源: 解析 【解析】Subtracting the sum ofthe first (n - 1) termsfrom the sum of thefirst n terms will leaveonly the nth term.nth ...
百度试题 结果1 题目The nth term of a geometric sequence is given by the formula u_n=-6*2^(n-1).What is the value of n, if u_n=-768? 相关知识点: 试题来源: 解析 8 反馈 收藏
L. Which equation represents a formula for the nth term of the sequence 40, -20, 10, -5, ..?a_n=-40(0.5)^(n-1)Ba_n=80(0.5)^(n-1) C a_n=40(-0.5)^(n-1)a_n=80(-0.5)^(n-1) 相关知识点: 试题来源: 解析 C
where Tn represents the nth term, a represents the first term, n represents the position of the term, and d represents the common difference between consecutive terms. Let's understand this formula in action with an example. Consider the arithmetic sequence 2, 5, 8, 11, 14. To find the ...
百度试题 结果1 题目Write an explicit formula for an, the nth term of the sequence22, 17, 12, ...Answer: a_n=Submit Answer 相关知识点: 试题来源: 解析 22.17.12 q_1=22 9=5 an=22+cn-1)5 反馈 收藏
百度试题 结果1 题目Write an explicit formula for an, the nth term of the sequence 36, 39, 42,... 相关知识点: 试题来源: 解析 36+3(n-1) 反馈 收藏