Question

sec2 60º--tan2 60
sin2 30° +cos2 30​

Answer 1

Step-by-step explanation:

We know that

$we \: \: know \: \: the \: \: identity \\ sec ^{2} (x) - \tan ^{2} (x) = 1 \\ hence \: \\ sec ^{2} (60) - \tan ^{2} (60) = 1 \\ \\ \sin ^{2} (x) + \cos ^{2} (x) = 1 \\ hence \\ sin ^{2} (30) + \cos ^{2} (30) = 1$

Also we can solve it by putting the value of 60° and 30°

Answer 2

☞ answer is 1

☞Also we can solve it by putting the value of 60° and 30°