Question

Evalute (sec²ø-1) (cosec²ø-1)​

Answer 1

Answer:

1

Step-by-step explanation:

$( { \sec }^{2} theta - 1)( {cosec}^{2} theta - 1)$

$= ({ \tan }^{2} theta)( { \cot}^{2} theta)$

$= { \tan }^{2} theta \times \frac{1}{ { \tan }^{2} theta}$

$= 1$