Question:`(x + y)/(x - y) + (x - y)/(x + y)`= কত?
A `(2(x^2 + y^2)/(x^2 - y^2)` B `(x + y)/(x^2 - y^2)` C `1/(x^2 - y^2)` D `(x^2 + y^2)/(x^2 - y^2)`
+ AnswerA
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