Sum of n terms of an AP

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Given sum of the first `n `terms of an `A. P.` is `2n +3n^2`. Another `A. P.` is formed with th...

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Sum of First n Terms of an AP | Class 10 Maths | Learnflix App

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CLASS 10 | CBSE | Maths | Sum of n terms of an AP | Exam Winner |

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Maths Arithmetic Progression part 10 (Sum of n terms of AP) CBSE class 10 Mathematics X

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The sum of n terms of two arithmetic progression is in the ratio 2n+1 : 2n-1. Find the ratio o...

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The sum of n terms of an A.P. is `3n^2-n`.Find the first term and common difference of A.P.

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SUM OF N TERMS OF ARITHMETIC PROGRESSION CLASS 10 | (PART 3 / 4) | IMPORTANT BOARD QUESTIONS

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How to find the sum of 'n' terms of an arithmetic progression?

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Example 21 Sequences & Series RD Sharma X ratio of the sum of n terms of two AP’s is (7n+1):(4n+27)

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If in an A.P. the sum of m terms is equal to n and the sum of n terms is equal to m,then prove that

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formula of nth term and Sn sum of first n terms of A.P. series

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The sum of first n terms of three arithmetic progressions are S1, S2 and S3. Prove that S1+S3=2S2.

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If the sum of n terms of an A.P. is `n P +1/2n(n-1)Q ,` where P and Q are constants, find the co...

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The sum of n terms of two A.P. are in ratio 5n+4 : 9n+6. Find the ratio of their 18th terms.

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If the sum of `n` terms of an A.P. is `2n^2+5n ,\ ` then its nth term is ltbr gt a.`4n-3` b. `

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In an A.P., if common difference is 2, sum to n terms is 49, 7th term is 13, then n=

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If Sn denotes the sum of n terms of an AP whose common difference is d and first term is a

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Find the sum of \'n\' terms of an A.P. whose nth term is 2n+1.

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Arithmetic Progressions L-2 | Sum of n Terms | CBSE Class 10 Maths | NCERT | Basic Maths | Vedantu

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The ratio of the sum of m and n terms of an AP is m2:n2. Show that am:an=(2m-1):(2n-1)

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The sums of first `n` terms of two A.P. `\' s` are in hte ratio `(7n+2):(n+4)dot` Find the ratio...

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How to solve problems based on sum of 'n' terms of an arithmetic progression ? -- Vol 1/4

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Sum of n terms of an Arithmetic Progression

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If the sum of first m terms of an AP is same as the sum of its first n terms, show thatthe sum of it