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CENGAGE ENGLISH-SEQUENCES AND SERIES-All Questions
- If Sn denotes the sum of first n terms of an A.P. and (S(3n)-S(n-1))/(...
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- If a ,b ,and c are in A.P., then a^3+c^3-8b^3 is equal to (a).2a b c (...
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- The number of terms of an A.P. is even. The sum of the odd terms is 24...
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- The largest term common to the sequences 1, 11 , 21 , 31 ,...... to 10...
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- If the sum of m terms of an A.P. is the same as the sum of its n terms...
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- If Sn denotes the sum of n terms of A.P., then S(n+3)-3S(n+2)+3S(n+1)...
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- About 150 workers were engaged to finish a piece of work in a certain ...
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- 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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- Assertion: There are infinite geometric progressions of for which 27,8...
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- If A1, A2, G1, G2, ; a n dH1, H2 are two arithmetic, geometric and har...
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- Let S(1),S(2),"…." be squares such that for each n ge 1, the length o...
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- If 1/(b-a)+1/(b-c)=1/a+1/c , then (A). a ,b ,a n dc are in H.P. (B). a...
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- If a ,b ,a n dc are in G.P. and x a n d y , respectively, be arithmeti...
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- Consider a sequence {an }with a1=2 and an=(a(n-1)^ 2)/(a(n-2)) for all...
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- Which of the following can be terms (not necessarily consecutive) of ...
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- The numbers 1, 4, 16 can be three terms (not necessarily consecutive) ...
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- Each question has four choices a,b,c and d out of which only one is...
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- If (1^2-t1)+(2^2-t2)+---+(n^2-tn)=(n(n^2-1))/3 , then tn is equal to a...
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- If b(n+1)=1/(1-bn)forngeq1a n db1=b3, t h e nsum(r=1)^(2001)b r^ 2001 ...
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- Let a1, a2, a3, ,a(100) be an arithmetic progression with a1=3a n dsp...
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