Math, asked by qarar, 1 year ago

x/a+y/b=a+b, x/a^2+y/b2=2 x=?,y=?

Answers

Answered by kvnmurty
2
There is a typing mistake in the given question.

Given   a /x  + b/y  = a+b    --(1)    and   a/x²  + b/y² = 2    ---(2)
To solve for x and y.

Let 1/x = X and 1/y = Y.
Then    a X  + b Y = a+b   ---(3)
       =>  X = (a+b - bY)/a   ---(4)

            a X² + b Y² = 2     ---(5)

Substitute X from (4) in (5) and simplify.
         a  [(a+b) - bY]²/a² + b Y² = 2
        b(b+a) Y² - 2 b(a+b)Y + (a+b)²-2a = 0 
        
        Y = [ b(a+b)  + √ {b(a+b) × {b(a+b) - (b+a)² + 2a } } ]/ { b(b+a)}
           =   1  + √{a(2-a-b)} / √{b(a+b) } 

        y = 1/Y = √b(a+b) / [ √(ab+b²) + √(a (2-a-b)) ]


Substituting this value in (1) we get: 
        x = √(ab(a+b)) / [ √(ab(a+b))  -+ √(a(2-a-b))

kvnmurty: :-)
qarar: very large
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