Oct 13, 2006 #1 BAT_MAN Member level 5 Joined Oct 9, 2006 Messages 90 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,845 Can anyone solve this equation 8n^2>=64nlgn
Oct 16, 2006 #2 zefreh Junior Member level 3 Joined Oct 1, 2005 Messages 25 Helped 4 Reputation 8 Reaction score 1 Trophy points 1,283 Activity points 1,439 how to solve n>8logn BAT_MAN said: Can anyone solve this equation 8n^2>=64nlgn Click to expand... by supposing that log is in base 2 we have : 8n^2>=64nlgn => n>=8logn => 2^n>=n^8 => n=1 (if n is a natural number)
how to solve n>8logn BAT_MAN said: Can anyone solve this equation 8n^2>=64nlgn Click to expand... by supposing that log is in base 2 we have : 8n^2>=64nlgn => n>=8logn => 2^n>=n^8 => n=1 (if n is a natural number)
Oct 16, 2006 #3 B bunalmis Full Member level 5 Joined Jan 3, 2003 Messages 280 Helped 19 Reputation 38 Reaction score 13 Trophy points 1,298 Location Ireland Activity points 2,197 64nlgn = n 8n^2>=64nlog n=8log n/8=log 10^( n / 8 )=n with calculator n~=6.5
Oct 16, 2006 #4 Z zajbanlik Member level 1 Joined Jan 26, 2006 Messages 39 Helped 2 Reputation 4 Reaction score 0 Trophy points 1,286 Location Germany Activity points 1,700 8n^2<64nlgn怎么求 If n is integer than is solution n=1 or n>=7.
Oct 17, 2006 #5 fal_con Newbie level 6 Joined Oct 12, 2006 Messages 11 Helped 6 Reputation 12 Reaction score 0 Trophy points 1,281 Activity points 1,336 Re: Solve equation I solve the equation through numerical computation and get n=43 solution at this both equation are equal.
Re: Solve equation I solve the equation through numerical computation and get n=43 solution at this both equation are equal.