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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, 20:55: PM
answered-by-expert Expert Answer
This can be solved as follows:
 
Answered by Renu Varma | 26 Jun, 2020, 18:28: PM

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CBSE 10 - Maths
how can I find this?
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Asked by lp9128437598 | 10 Jun, 2024, 10:34: AM
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CBSE 10 - Maths
find the sum of following 6+13+20+....+97
Asked by deepikaselvam2009 | 20 Feb, 2024, 20:57: PM
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CBSE 10 - Maths
If the sum of the first n terms of an AP be n and the sum of first n terms be m then sum of its (m+n) terms is -(m+n)
Asked by keshavsinghalhapur | 16 Jan, 2024, 20:46: PM
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CBSE 10 - Maths
If the sum of first n,2n and 3n terms of an AP be S1 S2andS3 respectively then p3 S2-S1
Asked by keshavsinghalhapur | 15 Jan, 2024, 10:56: AM
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CBSE 10 - Maths
A contract on construction job specifies penalty for delay of completion beyond a certain date as follows Rs. 200 for 1st, Rs. 250 for 2nd, and Rs. 300 for 3rd, so on. If contractor pays Rs. 27,750 as penalty, find the number of days for construction work delayed.
Asked by skandachiranjeevin | 06 Dec, 2023, 19:08: PM
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CBSE 10 - Maths
The sum of the first 7 terms of an AP is 63 and that of its next 7 terms is 161.find the AP
Asked by prassanna.j | 13 Nov, 2023, 23:24: PM
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CBSE 10 - Maths
If the pth term of an AP is 1/q and qth term 1/P. Prove that the sum of the first pqth term is 1/2 (pq + 1).
Asked by latayadav23 | 17 Oct, 2023, 20:39: PM
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CBSE 10 - Maths
if in an A.P. the sum of m terms equal to n and the sum of n terms is equal to m, then prove that the sum of (m+n) terms is -(m+n)
Asked by ananya_monica | 28 Sep, 2023, 19:07: PM
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CBSE 10 - Maths
find the sum of 8 multiple of 1.5
Asked by simmysingh1aug | 20 Sep, 2023, 22:20: 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, 16:35: PM
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