Question

(sec 0 +1) (sec 0 - 1) = ?
(B) C
LA​

Answer 1

Answer:

tan^2(0)

Step-by-step explanation:

(sec 0 +1) (sec 0 - 1)

= (sec^2(0) -1)

= [1- cos^2(0)] / cos^2(0)

= sin^2(0) / cos^2(0)

=tan^2(0)