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CENGAGE ENGLISH-SEQUENCES AND SERIES-All Questions
- After striking the floor, a certain ball rebounds (4/5)th of height ...
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- If S denotes the sum to infinity and Sn the sum of n terms of the seri...
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- The first term of an infinite geometric series is 21. The second term ...
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- Given that x+y+z=15 when a ,x ,y ,z ,b are in A.P. and 1/x+1/y+1/z=5/3...
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- Let a1,a2,a3…… ,an be in G.P such that 3a1+7a2 +3a3-4a5=0 Then common...
06:09
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- The consecutive digits of a three digit number are in G.P. If middle ...
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- If Sn=1^2-2^2+3^2-4^2+5^2-6^2+ ,t h e n S(40)=-820 b. S(2n)> S(2n+2) ...
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- If sum(r=1)^n r(r+1)(2r+3)=a n^4+b n^3+c n^2+d n+e , then (a) a-b=d-c ...
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- Find the sum off the terms of an infinite decreasing G.P. in which all...
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- If a,x,b are in A.P.,a,y,b are in G.P. and a,z,b are in H.P. such that...
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- If a,b, and c are in G.P then a+b,2b and b+ c are in
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- If in a progression a1, a2, a3,.......... e tc dot,(ar-a(r+1)) bears...
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- a ,b ,c x in R^+ such that a ,b ,a n dc are in A.P. and b ,ca n dd ar...
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- Let alpha,beta in Rdot If alpha,beta^2 are the roots of quadratic equ...
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- Let a in (0,1] satisfies the equation a^(2008)-2a+1=0 and S=1+a+a^2+.....
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- If a ,b and c are in A.P. and b-a ,c-b and a are in G.P., then a : b :...
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- If a ,b ,a n dc are in A.P. p ,q ,a n dr are in H.P., and a p ,b q ,a ...
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- The sum of three numbers in G.P. is 14. If one is added to the first ...
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- If x ,2x+2 and 3x+3 are the first three terms of a G.P., then the four...
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- The harmonic mean of two numbers is 4, their arithmetic mean A and geo...
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