C-11-Q077mediumsingle_mcq1+x1−x=ab\dfrac{1+x}{1-x}=\dfrac{a}{b}1−x1+x=ba হলে x=?x = ?x=?aa−ba+b\dfrac{a-b}{a+b}a+ba−bba+ba−b\dfrac{a+b}{a-b}a−ba+bcab\dfrac{a}{b}badba\dfrac{b}{a}ab