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You are not logged in. #1 20080706 22:37:47
three distinctIf a,b,c are three distinct nonzero real numbers and for some real number t prove that . Last edited by tony123 (20080706 22:38:24) #2 20090323 03:55:39
Re: three distinctNow we multiply (1) by b, (2) by c and subtract, and also we subtract (3) multiplied by a from (1) multiplied by b, yielding: Now we also multiply (2) by ac, (1) by c b and subtract, yielding: inserting (ac) in (4) from (6) yields: and multiplying this by a/t (t nonzero) and using (5) since the numbers where distinct, , thus 