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JBD PUBLICATION-SEQUENCES AND SERIES-EXAMPLE
- 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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- If A.M and G.M of two positive numbers are 13 and 12 respectively. Fin...
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- Find the sum of integers from 1 to 100 that are divisible by 2 or 5.
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- The ratio of the sums of m and n terms of an A.P. is m^2: n^2. Show th...
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- If a^(2),b^(2),c^(2) are in A.P. Prove that (a)/(b+c),(b)/(c+a),(c)/(a...
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- If S(1),S(2),S(3)be respectively the sum of n, 2n and 3n terms of a GP...
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- Let S be the sum, P the product and R the sum of reciprocals of n term...
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