" (6) "sin^(-1)((3)/(5))+tan^(-1)((5)/(5))=tan^(-1)

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

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)

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

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

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

Prove that: sin^(-1)(-(4)/(5))=tan^(-1)(-(4)/(3))=co^(-1)(-(3)/(5))-pi

cos^(-1)((63)/(65))+2tan^(-1)((1)/(5))=sin^(-1)(3/5)