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ICSE Class 10 Answered

The p the term of an AP is 20 and its q th term is 10. Show that the sum of its first (p+q) terms is (p+q)/2 {30+10/(p-q)}  
Asked by Raj Shekhar | 06 Jan, 2018, 06:39: AM
answered-by-expert Expert Answer
Answered by Rashmi Khot | 08 Jan, 2018, 13:42: PM

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ICSE 10 - Maths
sum of 10 tems of ap is 35 and sum of 9 terms of ap is 28. find the 10th term of an ap.
Asked by astonfern123 | 14 Jul, 2024, 20:01: PM
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ICSE 10 - Maths
Find the sum of first 24 terms of an A.P, whose nth term is given by an=3+2n
Asked by musarathh19 | 27 May, 2024, 19:45: PM
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ICSE 10 - Maths
the sum n terms of the series root2+root8+ root 18+root 32
Asked by srilakshmivytla28 | 10 Sep, 2023, 09:19: AM
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ICSE 10 - Maths
The 5th and 9th terms of an arithmetic progression are 4 and -12 respectively. Find (a) the first term (b) common difference (c) sum of 16 terms of the AP
Asked by varma.renu9481 | 13 Mar, 2023, 11:46: AM
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ICSE 10 - Maths
When do we use s=n/2(a+l) formula and when do we use s=n/2 x {2a+(n-1)d} formula in the sum of a.p?
Asked by rashikulkarni28 | 14 Aug, 2022, 16:32: PM
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ICSE 10 - Maths
In arithmetic progression , when we use s=n/2 [2a+(n-1)d] then why use a=(n-1)d formula?
Asked by rashikulkarni28 | 14 Aug, 2022, 16:30: PM
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ICSE 10 - Maths
Given 1/(1*2*3)+1/(2*3*4)+.....+1/(98*99*100)=a/b. Find (b-a).
Asked by arpitadas4117 | 17 Jan, 2022, 14:13: PM
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ICSE 10 - Maths
mrs gupta replace her total lone of 1,18000 by paying instalments every month. if the instalment for first month is 1000 and it increase by 100 every month ? what amount of lone she still has to pay after the 30 th instalment
Asked by preeti31122005 | 14 Aug, 2021, 13:08: PM
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ICSE 10 - Maths
the sum of first 6 terms of an A.P is 63 .The ratio of the 10th term to the 20th term is 1:2 . calculate the first and the 15th terms
Asked by savithakotari962 | 08 Feb, 2021, 20:40: PM
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ICSE 10 - Maths
  The algebraic expression of a sequence is 81-8n. What is 10th term What is the sum of 1st 10 terms whether the sum of any number of terms of the sequence will be 400? Why?
Asked by stehyeapen | 19 Oct, 2020, 13:11: PM
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