100%
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?
(1-tan^2(45-x))/(1+tan^2(45-x)= ?