cos^(-1)(u)/(5)+tan^(-1)(del)/(5)=tan^(-1)(27)/(11)

Prove that cos^(-1)((4)/(5))+tan^(-1)((3)/(5))=tan^(-1)((27)/(11))

Prove that : cos^(-1).(4)/(5)+ tan ^(-1).(3)/(5) = tan^(-1) .(27)/(11) (ii) Prove that : sin^(-1).(3)/(5)+ tan ^(-1).(3)/(5) = tan^(-1) .(27)/(11)

Prove that : cos^-1(4/5) + tan^-1(3/5) = tan^-1(27/11)

show that cos^(-1)""(4)/(5)+cot^(-1)""(5)/(3)=tan ^(-1)""(27)/(11) .

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

tan^(-1)7-tan^(-1)5=tan^(-1)(1)/(18)

tan^(-1)""(3)/(2) +tan^(-1)""(6)/(5)=pi - tan^(-1)""(27)/(8)

cos^-1(4/5)+tan^-1(3/5)=

P.T. Cos^(-1)((4)/(5))+Sin^(-1)((3)/(sqrt34))=Tan^(-1)((27)/(11)) .

tan(cos^(-1)((3)/(5))+tan^(-1)((1)/(4)))