P Plato MHF Helper Aug 2006 22,490 8,653 Oct 19, 2019 #2 shikanakin said: Click to expand... Well know that $\left(1+\dfrac{2y}{x}+\dfrac{y^2}{x^2}\right)=$ $\dfrac{x^2+2x y+y^2}{x^2}$ Now apply logarithms.

shikanakin said: Click to expand... Well know that $\left(1+\dfrac{2y}{x}+\dfrac{y^2}{x^2}\right)=$ $\dfrac{x^2+2x y+y^2}{x^2}$ Now apply logarithms.