use an identity to write the expression as a single trigonom

use an identity to write the expression as a single trigonometric function or as a single number. Show all work. 2tan 30degrees/ 1-tan^2 30degress

Solution

2tan 30degrees/ 1-tan^2 30degress

2tanA/(1-tan²A)=tan2A

=tan(2*30^o)

=tan60^o

=3

2tan 30degrees/ 1-tan^2 30degress =3