`cos^(-1)(15/17)+2 tan^(-1)(1/5)=`

Prove that sin^(-1)(3/5)+cos^(-1)(15/17)=cos^(-1)(36/85)

Prove that sin^(-1)(3/5)+cos^(-1)(15/17)=cos^(-1)(36/85)

Show that 2tan^(-1)(1/2) + tan^(-1)(1/7) = tan^(-1)(31/17)

Prove that 2 tan^(-1)(1/2) + tan^(-1)(1/7) = tan^(-1)(31/17)

Which of the following is/are correct? tan[cos^(-1)(4)/(5)+tan^(-1)(2)/(3)]=(17)/(6)cos[tan^(-1)(1)/(3)+tan^(-1)(1)/(2)]=(1)/(sqrt(2))cos2tan^(-1)((1)/(3))+cos(tan^(-1)2sqrt(2))=(14)/(15)cos[2cos^(-1)(1)/(5)+sin^(-1)(1)/(5)]=-(2sqrt(6))/(6)

The value of cot(cose c^(-1)(5/3)+ tan^(-1)(2/3)) is: (1) 6/(17) (2) 3/(17) (2) 4/(17) (4) 5/(17)

Prove that 2"tan"^(-1)(1)/(2) +"tan"^(-1)(1)/(7) ="tan"^(-1)(31)/(17) .

Prove that 2tan^(-1)((1)/(2))+ tan^(-1)((1)/(7))= tan^(-1)((31)/(17))

Prove that : sin^-1 (3/5) + cos^-1 (15/17) =sin^-1 (77/85)

Prove that: 2tan^(-1)(1/2)+tan^(-1)(1/7)=tan^(-1)(31/17)