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CENGAGE ENGLISH-SEQUENCES AND SERIES-All Questions
- The coefficient of the quadratic equation a x^2+(a+d)x+(a+2d)=0 are co...
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- Let S denote sum of the series 3/(2^3)+4/(2^4 .3)+5/(2^6 .3)+6/(2^7 .5...
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- Let the sum of first three terms of G.P. with real terms be 13/12 and ...
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- Given a,b,c are in A.P.,b,c,d are in G.P and c,d,e are in H.P .If a=2 ...
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- The terms a1,a2,a3 form an arithmetic sequence whose sum is 18.The ter...
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- Let f(x)=2x+1. Then the number of real number of real values of x for ...
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- Concentric circles of radii 1,2,3,. . . . ,100 c m are drawn. The inte...
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- Let {tn} be a sequence of integers in G.P. in which t4: t6=1:4 and t2+...
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- If x ,2y ,3z are in A.P., where the distinct numbers x ,y ,z are in G....
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- If Sp denotes the sum of the series 1+r^p+r^(2p)+ toooa n dsp the sum ...
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- If x ,y ,z are real and 4x^2+9y^2+16 z^2-6x y-12 y z-8z x=0,t h e nx ,...
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- If a1, a2, ,an are in H.P., then (a1)/(a2+a3++an),(a2)/(a1+a3++an), ...
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- If H1, H2, ,H(20) are 20 harmonic means between 2 and 3, then (H1+2)/...
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- A pack contains n cards numbered from 1 to n. Two consecutive numbered...
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- Let an=16 ,4,1, be a geometric sequence. Define Pn as the product o...
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- If he equation x^3+a x^2+b x+216=0 has three real roots in G.P., then ...
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- Let Tr be the rth term of an A.P., for r=1,2,3,..... If for some pos...
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- If an=3/4-(3/4)^2+(3/4)^3+...(-1)^(n-1)(3/4)^n and bn=1-an, then find ...
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- For a positive integer n let a(n)=1+1/2+1/3+1/4+.....+1/((2^n)-1)dot T...
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- If x >1,y >1,a n dz >1 are in G.P., then 1/(1+lnx),1/(1+l ny)a n d1/(1...
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