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The value of 0.2

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CENGAGE ENGLISH-SEQUENCES AND SERIES-All Questions
  1. If y^2=x za n da^x=b^y=c^z , then prove that (log)6a=(log)c bdot

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  2. The geometric mean between -9 and -16 is 12 b. -12 c. -13 d. none of t...

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  3. The value of 0.2

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  4. If (1+a)(1+a^(2))(1+a^(4)) . . . . (1+a^(128))=underset(r=0)overset(n)...

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  5. The number of terms common between the series 1+2+4+8+ .......to 100 t...

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  6. After striking the floor, a certain ball rebounds (4/5)th of height ...

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  7. If S denotes the sum to infinity and Sn the sum of n terms of the seri...

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  8. The first term of an infinite geometric series is 21. The second term ...

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  9. 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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  10. Let a1,a2,a3…… ,an be in G.P such that 3a1+7a2 +3a3-4a5=0 Then common...

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  11. The consecutive digits of a three digit number are in G.P. If middle ...

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  12. 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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  13. 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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  14. Find the sum off the terms of an infinite decreasing G.P. in which all...

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  15. 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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  16. If a,b, and c are in G.P then a+b,2b and b+ c are in

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  17. If in a progression a1, a2, a3,.......... e tc dot,(ar-a(r+1)) bears...

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  18. 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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  19. Let alpha,beta in Rdot If alpha,beta^2 are the roots of quadratic equ...

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  20. Let a in (0,1] satisfies the equation a^(2008)-2a+1=0 and S=1+a+a^2+.....

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