According to the problem, we have a series given as 1, 3, 5, 7, 9,……. We need to find the sum of the elements in this series up to n terms.We know that an Arithmetic Progression (AP) is of form a, a+d, a+2d,…….., where ‘a’ is kno...
Sum of N Terms, sum of n natural numbers, sum of n square numbers and sum of n cubic numbers, formulas are available here at BYJU'S with solved examples.
Let's assume the middle term of the AP is \(a_2\). Then, the sum of the three consecutive terms will be: \[a_1 + a_2 + a_3 = 72\] Substituting the formula for \(a_1\) and \(a_3\): \[a + (1-1)d + a + (2-1)d + a + (3-1)d = 72\] Simplifying: \[3a...
百度试题 结果1 题目If the sum of first n terms of an AP is An+Bn^2 where A and B are constants, the common difference of AP will be ( ) A. A+B B. A − B C. 2A D. 2B 相关知识点: 试题来源: 解析 D
)? What is the sum of first two terms? What is the second term? Similarly find the 3rd, the10th and the nth terms. 相关知识点: 试题来源: 解析 Solution: Given that,Sn = 4n - n2First term, a = S1 = 4(1) -(1)2=4-1= 3Sum of first two terms = S2= 4(2) -(2)2...
Files 5a66887 backend agent assets executor graph models router templates websocket go.mod go.sum gqlgen.yml main.go tools.go frontend .gitignore
Find the sum of first sixteen terms of the AP. 相关知识点: 试题来源: 解析 【解析】Solution: From the given statements, we canwrite,Anda3×a7=8 ...()By the nth term formula,an=a+(n-1)dT hird term, a3=a+(3-1)da3=a+2d...()And Seventh term, a7 = a + (7 -1)da7=a+6...
We read every piece of feedback, and take your input very seriously. Include my email address so I can be contacted Cancel Submit feedback Saved searches Use saved searches to filter your results more quickly Cancel Create saved search Sign in Sign up Reseting focus {...
The sum of first nn terms of an AP is given by Sn=4n2+nSn=4n2+n. Find that APAP. AcademicMathematicsNCERTClass 10 Given: Sn=4n2+nSn=4n2+n To do: We have to find the AP. Solution: Let us take sum upto 1 term S1=4(1)2+(1)=4+1=5S1=4(...
for five years, the sum of the years' digits would be obtained by adding: 5 + 4 + 3 + 2 + 1 to get a total of 15. Each digit is then divided by this sum to determine the percentage by which the asset should be depreciated each year, starting with the highest number in year 1...