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If the sum of m terms of an A.P. is the ...

If the sum of `m` terms of an A.P. is the same as the sum of its `n` terms, then the sum of its `(m+n)` terms is (a).`m n` (b). `-m n` (c). `1//m n` (d). `0`

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CENGAGE PUBLICATION-SEQUENCES AND SERIES-All Questions
  1. The number of terms of an A.P. is even. The sum of the odd terms is 24...

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  2. The first term of an A.P. is 5, the last term is 45 and the sum is 400...

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  3. If the sum of m terms of an A.P. is the same as the sum of its n terms...

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  4. Find the 20th term of the A.P. whose 7th term is 24 less than the 11th...

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  5. About 150 workers were engaged to finish a piece of work in a certain ...

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  6. in a G.P (p+q)th term = m and (p-q) th term = n , then find its p th t...

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  7. The sum of three numbers in A.P. is 3 and their product is – 35. Find ...

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  8. Find the sum of first 51 terms of the A.P. whose second and third term...

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  9. Let S1 , S2,,,,, be squares such that for each n ge 1 the length of a ...

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  10. Find the 6th term from the end of the list of numbers 3, – 6, 12, – 24...

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  11. Determine the 12th term of a G.P. whose 8th term is 192 and common rat...

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  12. Consider a sequence {an }with a1=2 and an=(a(n-1)^ 2)/(a(n-2)) for all...

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  13. Which of the following can be terms of any A.P.? a. 1,6,19 b. sqr...

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  14. x, x + 3, x + 9 are first three terms of a G.P. Find the value of x.

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  15. Each question has four choices a,b,c and d out of which only one is...

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  16. Find the sum of the following A.P.s : (i)1/15, 1/12, 1/10, … to 11 ter...

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  17. Find the value of x such that, (i) -2/7, x, -7/2 are three consecutiv...

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  18. Let a1 , a2 , ...., a100 be an arithmetic progression with a1 = 3 and ...

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  19. If 1^2+2^2+3^2++2003^2=(2003)(4007)(334) and (1)(2003)+(2)(2002)+(3)(2...

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  20. The value of sum(i=1)^nsum(j=1)^isum(k=1)^j1=220 , then the value of ...

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