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## Answers

this expression is of the form ζdx/(x²-a²) =1/2a log((x-a)/(x+a)).....

so if u hold a²=1/2 and solve accordingly u will get the answer....

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this expression is of the form ζdx/(x²-a²) =1/2a log((x-a)/(x+a)).....

so if u hold a²=1/2 and solve accordingly u will get the answer....