Find first and last value in the below series

???, 0.57735, 0.44721, 0.37796, ???

• First number is 1
  last number =0.33333
  
  ???, 0.57735, 0.44721, 0.37796, ???
  
  1, 0.57735, 0.44721, 0.37796, 0.33333
  
  series is made by numbers
  root 1/1
  root 3/3
  root5 / 5
  root7/7
  root9/9 =3/9 =1/3=0.3333
• 12 years agoHelpfull: Yes(4) No(0)
• Another possible Solution also there.
  
  First Number is 0.70710
  Last Number is 0.30151
  
  Series is in consecutive prime numbers like,
  root of 2/2 =0.70710
  root of 3/3 =0.57735
  root of 5/5 =0.44721
  root of 7/7 =0.37796
  root of 11/11=0.30151
  
  Final = 0.70710, 0.57735, 0.44721, 0.37796, 0.30151
• 12 years agoHelpfull: Yes(2) No(1)
• Solution is
  
  First Number is 0.70710
  Last Number is 0.30151
  
  Series is in consecutive prime numbers like,
  (root of 2)/2 =0.70710
  (root of 3)/3 =0.57735
  (root of 5)/5 =0.44721
  (root of 7)/7 =0.37796
  (root of 11)/11=0.30151
  
  Final = 0.70710, 0.57735, 0.44721, 0.37796, 0.30151
• 12 years agoHelpfull: Yes(2) No(1)