a_2-a_1=5-(5+k) or -k find the difference between pairs of consecutive termsa_3-a_2=5-k-5 or -k to verify the common difference.The common difference is -k.Add -k to the third term to get the fourth term, and so on.a_4=5-k-k or 5-2ka_5=5-2k-k or 5-3ka_6=5-...
This is an arithmetic sequence since there is a common difference between each term. In this case, adding ( -1/9) to the previous term in the sequence gives the next term. In other words, ( a_n=a_1+d(n-1)). Arithmetic Sequence: ( d=-1/9) This is the form...
After you have learned to solve problems with arithmetic and quadratic sequences, you may be asked to solve problems with cubic sequences. As the name implies, cubic sequences rely on powers no higher than 3 to find the next term in the sequence. Depending on the complexity of the sequence...
Find the sum of an 8-term geometric sequence when the first term is 7 and the last term is 114,688. Find the sum of the first 7 terms of the geometric sequence with 4th term 32 and 5th term 64. Determine whether each sequence is arithmetic or geometric. Find the next three terms. ...
When finding the nth term in an arithmetic sequence, how to solve a sequence with fractions? Determine whether the following sequence is monotonic. A_n = \frac{n + 1}{n} Find the indicated term for a sequence with a1 = 48, r = -1/3. Find a6. ...
百度试题 结果1 题目Find the nth term of each arithmetic sequence described.a_1=10,d=-5,n=21 相关知识点: 试题来源: 解析 —90 反馈 收藏
u_3=8 ∴ u_1+2d=8 (1) {using u_n=u_1+(n-1)d}u_8=-17 ∴ u_1+7d=-17 (2)We now solve (1) and (2) simultaneously:-u_1-2d=-8 {multiplying both sides of (1) by -1}u_1+7d=-17∴ 5d=-25 {adding the equations}∴ d=-5So, in (1): u_1+2(-5)=8∴ u_1...
Use this free Arithmetic Progression calculator to find any term, the sum of terms, or the common difference in a sequence. Fast, simple, and accurate!
Median represents the middle value for any group. It is the point at which half the data is more and half the data is less. Median helps to represent a large number of data points with a single data point. Understand how to find median using examples.
Step 1: Identify the nth term of the sequence Let's denote the nth term of the sequence asTn. We observe the sequence: -T1=1 -T2=4 -T3=13 -T4=40 -T5=121 Step 2: Find the pattern in the sequence To find a pattern, we can look at the differences between consecutive terms: ...