Plz help me with these difficulties !

Asked by Saravanan | 29th May, 2013, 10:18: PM

Expert Answer:

Please ask one queston per query. Answer to your first question is below - 
 
1. x/a + y/b = 2 (1)
       ax - by = a^2 - b^2  (2)
 
Simplifying Equation 1
bx+ay = 2ab
Multiplying the equation by a
abx+a^2y = 2a^2b
 
Multiplying equation 2 by b
abx - b^2y = a^2b - b^3
 
Subtracting the above 2 equation
(a^2+b^2)y = a^2b + b^3
y = b 
x =  [2ab-a(b)]/b = a

Answered by  | 30th May, 2013, 03:00: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.