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Tan^(-1)(x/y)-Tan^(-1)((x-y)/(x+y))=...

`Tan^(-1)(x/y)-Tan^(-1)((x-y)/(x+y))=`

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Statement 1: tan^(-1)((3)/(4))+tan^(-1)((1)/(7))=(pi)/(4) Statement 2: For x gt 0, Y gt 0 tan^(-1)((x)/(y))+tan^(-1)((y-x)/(y+x))=(pi)/(4)

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