x²(y-z)p+y²(z-x)q=z²(x-y) BSC 2ed year math paper -2ed chapter 17th unit 4th Lagrange's equations 

x²(y-z)p+y²(z-x)q=z²(x-y) BSC 2ed year math paper -2nd chapter 17th unit 4th Lagrange's equations
BSC 2nd year math paper -2nd major, minor, ele chapter 17th unit 4th important example solution in your University exam Lagrange's equations
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