Question

Value of sec ^2 26 -cot ^2 64

Answer 1

${ \cot}^{2} 64 = { \tan}^{2} (90 - 64) ={ \tan }^{2} (26)$


Using this value above,

${ \sec}^{2} 26 - { \tan }^{2} 26$

Using identity,
${ \sec}^{2} \alpha - { \tan }^{2} \alpha = 1$
Gives the answer as 1.

Answer 2

Answer:   1

Step-by-step explanation: