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CBSE Class 10 Answered

The sum of n term of an ap is 4n^2-3n.find 20th term of this ap
Asked by bansalrohit056 | 25 Jun, 2020, 08:55: PM
answered-by-expert Expert Answer
This can be solved as follows:
 
Answered by Renu Varma | 26 Jun, 2020, 06:28: PM

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CBSE 10 - Maths
find the sum of first 51 term of an AP whose second and third terms are 14 and 18 respectively.
Asked by bkhaiwangkonyak | 07 Mar, 2023, 04:35: PM
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CBSE 10 - Maths
the sum of fourth and eight terms of an A.P is 54 and their product is 665. find the sum of the first thirty terms of an A.P​
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Asked by sakshinde95 | 23 Jan, 2023, 05:50: PM
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CBSE 10 - Maths
If the sum of first m terms of an A.P. is n and the sum of first n terms is m, then show that the sum of its first (m + n) terms is - (m + n).
Asked by d7016880266 | 20 Jan, 2023, 08:14: PM
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CBSE 10 - Maths
how many terms of an AP 1,4,7...must be taken to give a sum of 51?
Asked by jaiprakashprasadr | 17 Jul, 2022, 11:03: PM
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CBSE 10 - Maths
Arithmetic progression all formulas
Asked by Keerthanaambika48 | 13 Jul, 2021, 09:44: AM
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CBSE 10 - Maths
The sum of the first 7 terms of an A.P is 182 if its 4th ans 17th terms are in ratio 1:5 find the Ap
Asked by madhutowari | 28 Jun, 2021, 07:56: PM
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CBSE 10 - Maths
0.6,1.7,2.8........to100term
Asked by maulaali35 | 24 Oct, 2020, 08:00: AM
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CBSE 10 - Maths
sn denotes the sum of first n terms of an AP, whose common difference is d, then   Sn-2Sn-1 + Sn-2 (n > 2) is equal to   A) 2d B) -d C) d D) None of these  Explain solution please  
Asked by Anubhavjain599 | 25 Aug, 2020, 10:16: PM
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CBSE 10 - Maths
Sir/Madam Plss solve it Sum of all integers between 100 and 500 which are divisible by 17
Asked by seeni2005 | 17 Aug, 2020, 12:42: AM
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CBSE 10 - Maths
Plz solve this question
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Asked by Deepakaryan571 | 09 Aug, 2020, 12:18: PM
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