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tan^(-1)(1/7)+tan^(-1)(1/9)+tan^(-1)(1/8...

`tan^(-1)(1/7)+tan^(-1)(1/9)+tan^(-1)(1/8)`

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

Prove that tan^(-1) (1/8) +tan^(-1) (1/5) =tan^(-1) (1/3)

If S=tan^(-1)(1/3)+tan^(-1)(1/7)+tan^(-1)(1/13)+.... to 10 terms. Find tanS

PT tan^(-1)(3/4)+tan^(-1)(1/3)=tan^(-1)(13/9)

tan^(-1)(1/7)+tan^(-1)(4/7)+tan^(-1)(9/7)=.........

tan^(-1) (1/5) + tan^(-1) (1/7) + tan^(-1) (1/3) + tan^(-1) (1/8) = π/4

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

tan^(-1)(1)/(4)+tan^(-1)(2)/(9)=tan^(-1)(1)/(2)

tan^(-1) (1/5) + tan^(-1) (1/8) =