Question

sec x + 1 = tan x? How do I solve?

Answer 1

first, squares both sides. what do you get ...

Answer 2

sec^2 x+1=tan^2 x

Answer 3

sec^2 x + 2 secx + 1 = tan^2 x

remember that ;
(a+b)^2 = a^2 + 2ab + b^2