Question

for what values of x in first quadrant 2tanx/1-tan²x is positive​

Answer 1

Answer:

Answer is here

Step-by-step explanation:

2tanx/1-tan^2x

let x=30°

2*1/√3/1-1/3

=2/√3/ 3-1/3

=2/√3 / 2/3

=3/√3

= 3√3/3=√3

Answer 2

Answer:

pi/4

what value of xin the first quadrent