1,6,7,13,20,......Sum upto 52 terms.

• The sum of the first n Fibonacci numbers is the (n + 2)nd Fibonacci number minus 1.
• 11 years agoHelpfull: Yes(3) No(5)
• nth term would be n-2+n-1=2n-3
  2summation n-3summation up to 52 terms
  2(n*n+1/2)-3n=n^2-2n=52^2-2*52=2148
  
• 11 years agoHelpfull: Yes(2) No(1)
• ans will be 352849113664
• 11 years agoHelpfull: Yes(1) No(6)
• 134778293100
• 11 years agoHelpfull: Yes(1) No(2)
• 1+6=7,6+7=13,7+13=20,13+20=33,20+33=53,33+53=86..............
• 11 years agoHelpfull: Yes(1) No(3)
• VISHAKHA BHATTACHARJEE how ...?
• 11 years agoHelpfull: Yes(0) No(0)
• plz expln the process in details...
• 11 years agoHelpfull: Yes(0) No(0)
• 102547513600
• 11 years agoHelpfull: Yes(0) No(1)