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JBD PUBLICATION-SEQUENCES AND SERIES-EXAMPLE
- If the pth, qth and rth terms of an A.P. be x,y,z repsectively, then s...
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- In an A.P., the first term is 2 and the sum of the first five terms is...
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- Find the sum of all natural numbers lying between 100 and 1000, which ...
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- Let the sum of n, 2n, 3n terms of an A.P. be S1, S2 and S3, respective...
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- The sums of n terms of two arithmetic progressions are in the ratio 5n...
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- Prove that the sum of n arithmetic means between two numbers is n time...
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- The digits of a positive integer having three digits are in AP and the...
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- If the first and the nth terms of a GP are a and b respectively and if...
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- How many terms of the series sqrt(3) + 3 + 3sqrt(3) +…... will make th...
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- Find the sum of n terms of the following sequences: 8+88+888+……………..up...
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- The A.M. between two positive numbers is 34 and their G.M. is 16. find...
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- If a be the A.M. and x, y be the two G.M's between b and c, show that ...
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- The sum of three numbers which are consecutive terms of an A.P. is 21....
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- If a,b,c are in A.P. and x,y,z are in G.P., then show that x^(b-c).y(c...
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- Find a G.P. for which sum of the first two terms is -4 and the fifth t...
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- The sum of an inifinite G.P. is 8. If the second term is 2, then find ...
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- Find the sum to n terms of the series 3 xx 8 + 6 xx 11 + 9 xx 14 + …
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- Find the sum of the series 1*n+2*(n-1)+3*(n-2)+4*(n-3)+"..."+(n-1)*2+n...
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- The difference between any two consecutive interior angles of a polygo...
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- A manufacturer reckons that the value of a machine, which costs him Rs...
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