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If 2"tan"^(-1)(1)/(5)-"sin"^(-1)(3)/(5)...

If `2"tan"^(-1)(1)/(5)-"sin"^(-1)(3)/(5)= -"cos"^(-1)(63)/(lambda`, then `lambda=`

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Prove that: tan^(-1)(63)/(16)=sin^(-1)(5)/(13)+cos^(-1)(3)/(5)

Prove that :tan^(-1)(63)/(16)=sin^(-1)(5)/(13)+cos^(-1)(3)/(5)

Cos^(-1)(63/65)+2Tan^(-1)(1/5)=

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Prove that "sin"^(-1)(5)/(13) +"cos"^(-1)(3)/(5) ="tan"^(-1)(63)/(16) .

Prove That : "tan"^(-1)63/16="sin"^(-1)5/13+"cos"^(-1)3/5