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CENGAGE PUBLICATION-SEQUENCES AND SERIES-All Questions
- If the sum of n terms of an A.P. is given by Sn=a+b n+c n^2, w h e r ...
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- Find the sum of 20th term of the A.P (x+y), (x-y), (x-3y), ....
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- Find the sum of the series 2+5+8+11+.....+191
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- If p ,q ,a n dr are inA.P., show that the pth, qth, and rth terms of a...
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- If n >1 , the value of the positive integer m for which n^m+1 divides ...
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- For an increasing A.P. a1, a2, an ifa1+a3+a5=-12 and a1a3a5=80 , then...
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- If p(x)=(1+x^2+x^4++x^(2n-2))//(1+x+x^2++x^(n-1)) is a polomial in x ,...
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- Find the sum of all even integers between 101 and 199.
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- Match the statements/expressions given in column I with the values g...
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- Prove that 1+i^2+i^4+i^6 =0
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- if a ,b ,c are in G.P.,then (log)a 10 ,(log)b10,(log)c 10 are in
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- The 15th term of the series 2 1/2+1 7/(13)+1 1/9+(20)/(23)+.... i s (...
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- Let a1,a2,a3,.......a11 be real number satisfying a1=15,27-2a2gt0 anda...
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- The coefficients of x^n in (1+x/(1!)+x^2/(2!)+……+x^n/(n!))^2 is
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- If x^2+9y^2+25 z^2=x y z((15)/x+5/y+3/z), then x ,y ,a n dz are in a...
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- Find the conjugate of the following: sqrt (-3)
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- The x=1111....1 of 91 times of is a (a) Even number. (b) Prime numbe...
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- Which term of the AP 64, 60, 56, 52, 48 ,.... is 0 .
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- Statement 1: Sum of the series 1^3-2^3+3^3-4^3++11^3=378. - Statement ...
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- Statement 1: 1^(99)+2^(99)++100^(99) is divisible by 10100. Statement...
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