Question

(sec^2 theta-1)(csc^2 theta-1)

Answer 1

Answer:

1

Step-by-step explanation:

$( { \sec}^{2} \theta - 1)( { \csc}^{2} \theta - 1) \\ \\ = { \tan}^{2} \theta. { \cot}^{2} \theta \\ \\ = 1$