Proove that :
\(\sec^4 A\left( 1 - \sin^4 A \right) - 2 \tan^2 A = 1\)
Please read the guide .
Please answer the question in detail
Hence , prooved
Doubtly is an online community for engineering students, offering:
Get the pro version for free by logging in!
5.7k questions
5.1k answers
108 comments
535 users