100%
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?
tan^-1(1/2)+tan^-1(1/5)+tan^-1(1/8)=?