Respuesta :

Hrishii

Answer:

- 3

Step-by-step explanation:

[tex] - 2( { \csc}^{2} \theta \: - {cot}^{2} \theta) - 1 \\ = - 2(1) - 1 \\ = - 2 - 1 \\ = - 3[/tex]
csc^2 theta -cot^2 theta is 1

-2(1) -1 = -3