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  equality of numbers   2 Nickels awarded!
Tagged with:    [Post New]posted on 4 May 2007 23:19:03 IST    
friends now we will see how to prove that any 2 numbers are equal.......
 
                          say that u want to show that  4=5 then...
 
 
   take
                                    -20 = -20
   now
                              16 - 36  =  25 - 45
 
 {take 2 as square}    (4)2 - 4*9 = (5)2 - 5*9 { 4 square and 5 square}
 
                             (4)2 - 2*4*(9/2) = (5)2 - 2*5*(9/2)
 
 (4)2 - 2*4*(9/2) + (9/2)2  =  (5)2 - 2*5*(9/2)+(9/2)2
        
     now this can be written as....
 
                  ( 4 - 9/2)2  =   (5 - 9/2)2
 
        so in one case it yields that
  
                           4 = 5
 
this is developed by me and theres a general technique i found out to prove that any number is equal to any other number!!!!!
 
  interesting and questiony maths right?
                         
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raghuram369 (60)

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LAMPARD
LAMPARD is offline comment by LAMPARD    (posted on 4 May 2007 23:24:08 IST)
hey buddy,interestin math allryt..but in the 4th step,u hav only mltipyd the 2nd and the 4th term by 2....and u cant do dat...neways,nice way 2 fool many.....
raghuram369
raghuram369 is offline comment by raghuram369    (posted on 4 May 2007 23:27:11 IST)
lampard i never multiplied the second and 4th term any where observe that care fully....i divide 9 by 2 and then again multiplied by 2...see that again
amit_007
amit_007 is offline comment by amit_007    (posted on 4 May 2007 23:27:23 IST)
good job
vinu
vinu is offline comment by vinu    (posted on 4 May 2007 23:36:29 IST)
hey, this was told by ma sir in my 9th......
the thing is (x^2)^1/2 = + or - x .
thr u go..
raghuram369
raghuram369 is offline comment by raghuram369    (posted on 4 May 2007 23:39:07 IST)
yes vinu...so i mentioned in i case
amitsingh
amitsingh is offline comment by amitsingh    (posted on 4 May 2007 23:49:45 IST)
At one side of equality we are getting 1/2square
and at other side -1/2square.
sothe equality is right but it does not imply that 4=5
raghuram369
raghuram369 is offline comment by raghuram369    (posted on 4 May 2007 23:54:46 IST)
iam sorry amit we must not simplify the one in bracket but take roots and then take 1 case
iitianwannabe is offline comment by iitianwannabe    (posted on 5 May 2007 10:33:42 IST)
let me first give an example...
x=2
squaring
x^2=4
square root...
x=+/-2
BUT obviously -2 does NOt satisfy as x=2 only...ie this method always gives an extra root...
now u have done a similar thing..by expressing in terms of a square and then rooting...uve created an extra root...by taking '-' sign only...the equality is satisfied but not otherwise...
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