Question

tan ^-1 (1)+tan^-1(x)=0 find x

Answer 1

tan^-1 tan (135)+Tan^-1 (x)=0

135+Tan^-1 (x)=0

tan^-1 (x)=-135

x=tan(-135)

x=-tan (180-45)

x=tan(45)

x=1 ans.