Math, asked by bhawnaraj739, 8 months ago

samikaran hal kijiye (x+1)/(x-1)-(x-1)/(x+1)=5/6​

Answers

Answered by MaheswariS
0

\underline{\textsf{Given:}}

\mathsf{\dfrac{x+1}{x-1}-\dfrac{x-1}{x+1}=\dfrac{5}{6}}

\underline{\textsf{To find:}}

\textsf{Solution of the given equation}

\underline{\textsf{Solution:}}

\textsf{Consider,}

\mathsf{\dfrac{x+1}{x-1}-\dfrac{x-1}{x+1}=\dfrac{5}{6}}

\mathsf{\dfrac{(x+1)^2-(x-1)^2}{(x-1)(x+1)}=\dfrac{5}{6}}

\mathsf{\dfrac{(x^2+1+2x)-(x^2+1-2x)}{x^2-1}=\dfrac{5}{6}}

\mathsf{\dfrac{4x}{x^2-1}=\dfrac{5}{6}}

\mathsf{24x=5(x^2-1)}

\mathsf{24x=5x^2-5}

\textsf{Rearranging terms we get}

\mathsf{5x^2-24x-5=0}

\mathsf{5x^2-25x+x-5=0}

\mathsf{5x(x-5)+1(x-5)=0}

\mathsf{(5x+1)(x-5)=0}

\implies\mathsf{x=\dfrac{-1}{5},5}

\underline{\textsf{Answer:}}

\textsf{Solution set is}

\mathsf{\{5,\dfrac{1}{5}\}}

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