Flag Algebra> find integral value of equation 1/x+1/y=1...
question mark

find integral value of equation 1/x+1/y=1/2007

digajaritarun , 10 Years ago
Grade 12th pass
anser 3 Answers
Sher Mohammad

Last Activity: 10 Years ago

1/x=1/2007-1/y

1/x =(y-2007)/2007y
x=2007y/(y-2007)
for y=2008, x= 2007*2008, is one integral solution.

sher mohammad
b.tech, iit delhi




mycroft holmes

Last Activity: 10 Years ago

Since x,y>2007 we have x = 2007+a, y = 2007+b for some naturals a,b So, 1/(2007+a)+1/(2007+b) = 1/2007. Cross multiplying etc. we get, ab = 2007^2 = 3^4 X 223^2 For any ordered pair of naturals a,b satisfying ab = 2007^2, we have the corresponding pair (x,y) = (2007+a, 2007+b) as a solution. e.g. a=b=2007 gives x=y=4014 or a=1, b = 2007^2 gives x=2008,y=2007*2008 All in all we get 29 ordered pairs as solutions.

Rokesh

Last Activity: 4 Years ago

1/x + 1/y = 1/ c
1/(c+a)+a/(c*(c+a))=1/c
a can be any number you want
1/(2007+a) + a/(2007*(2007+a)) = 1/2007
Put any value for a,
x = 2007+a
y = a/(2007*(2007+a))                                                                   
-Rokesh M
 
 
 
 
 
 
 
 

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...