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4tan^(-1)(1)/(5)-tan^(-1)(1)/(239)=(pi)/...

4tan^(-1)(1)/(5)-tan^(-1)(1)/(239)=(pi)/(4)

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Prove the following: 4\ tan^(-1)(1/5)-tan^(-1)(1/(239))=pi/4

Find the value of 4tan^(-1)((1)/(5))-tan^(-1)((1)/(239))

Prove that tan^(-1)((1)/(2))+tan^(-1)((1)/(5))+tan^(-1)((1)/(8))=(pi)/(4)

Prove that : tan^(-1)((1)/(2))+tan^(-1)((1)/(5))+tan^(-1)((1)/(8))=(pi)/(4)

Prove that tan^(-1)""(1)/(2)+tan^(-1)""(1)/(5)+tan^(-1)""(1)/(8)=(pi)/(4)

Prove that : tan^(-1)(1)/(5)+tan^(-1)(1)/(7)+tan^(-1)(1)/(3)+tan^(-1)(1)/(8)=(pi)/(4)

Prove that tan^(-1)""(3)/(4)+tan^(-1)""(3)/(5)-tan^(-1)""(8)/(19)=(pi)/(4)

Prove that: tan^(-1)((1)/(5))+tan^(-1)((1)/(7))+tan^(-1)((1)/(3))+tan^(-1)((1)/(8))=(pi)/(4)

Prove: 4 tan^(-1) (1/5 )- tan^(-1)( 1/239) = pi/4