1) 1,3,5,9,17,33
2)1,-1,2,-6,2,-2,4,-12,3
3) 4,64,1,1,3,27,2

• 2^0=1,2^1+1=3,2^2+1=5,..............2^5+1=33,2^6+1=65
• 11 years agoHelpfull: Yes(29) No(1)
• (1*2-1=3),(3*2-1=5),(5*2-1=9),(9*2-1=17),(17*2-1=33),(33*2-1=65)
  (1*-1=-1),(2*-3=-6),(2*-1=-2),(4*-3=-12),(3*-1=-3)
  (4^3=64),(1^3=1),(3^3=27),(2^3=8)
• 11 years agoHelpfull: Yes(24) No(17)
• @ Devendra,
  
  Pls check.
  (1*2-1=3), ....... How ?
  I think (1*2-1=1)
• 11 years agoHelpfull: Yes(18) No(4)
• 1,-1,2,-6,2,-2,4,-12,3
  1*-1=-1,
  2*-3=-6,
  2*-1=-2,
  4*-3=-12,
  3*-1=-3
  ans :-3
• 11 years agoHelpfull: Yes(17) No(1)
• 1. 1,3,5,9,17,33,65
  2. 1,-1,2,-6,2,-2,4,-12,3,-3,6,-18,4,-4........
  3. 4,64,1,1,3,27,2,8
  
• 11 years agoHelpfull: Yes(3) No(6)
• please explain it
  
• 11 years agoHelpfull: Yes(2) No(0)
• 1.
  2.
  3.2^3=8
• 11 years agoHelpfull: Yes(2) No(0)
• 1)
  FROM
  1 3
  5 =(3*2)-1
  9=(5*2)-1
  17=(9*2)-1
  33=(17*2)-1
  65=(33*2)-1
• 11 years agoHelpfull: Yes(2) No(1)
• (4,64,1),(1,3,27),(2,?,?)
  4^3=64,
  3^3=27,
  2^3=8
• 11 years agoHelpfull: Yes(2) No(2)
• 4*4^2=64
  1*1^2=1
  3*3^2=27
  2*2^2=8
  ans:8
• 10 years agoHelpfull: Yes(2) No(0)
• 1. First 1 Indicates how much to be subtracted
  Hence 3*2-1=5,5*2-1=9,9*2-1=18,17*2-1=33,33*2-1=65
  Ans:65
• 11 years agoHelpfull: Yes(1) No(1)
• diffs b/w each no is:- 2 ,2,4,8,16,?
  ex: Ist term 1
  2nd 1+2=3
  3rd 3+2=5
  likwise diff b/w 6th and 5th is 16(33-17)
  then nxt no is 6th+32
  that means 33+32=65
  
  Ans ==65
  
• 11 years agoHelpfull: Yes(1) No(0)
• 1*-1=-1,2*-3=-6,2*-1=-2,4*-3=-12,3*-1,=-3
• 11 years agoHelpfull: Yes(1) No(3)
• (4^3=64),(1^3=1),(3^3=27),(2^3=8)
• 11 years agoHelpfull: Yes(1) No(2)
• (1*2-1=3),(3*2-1=5),(5*2-1=9),(9*2-1=17),(17*2-1=33),(33*2-1=65)
• 11 years agoHelpfull: Yes(1) No(1)
• i think 2 must be there in place of 1,then
  2*2-1=3 ,3*2-1=5 ,5*2-1=9 ,9*2-1=17 ,17*2-1=33 ,33*2-1=65
• 10 years agoHelpfull: Yes(1) No(0)
• 2) 1,-1
  1*2=2
  2*(-3)=-6
  i.e. 2,-6 now
  2,-2
  2*(2)=4
  4*(-3)=-12
  i.e. 4,-12 now
  3,-3
  3*2=6
  6*(-3)=-18 series goes like this..
• 11 years agoHelpfull: Yes(0) No(0)
• 3-1=2
  5-3=2
  9-5=4
  17-9=8
  33-17=16
  33+16*2=65
• 10 years agoHelpfull: Yes(0) No(0)