Tuesday, 23 July 2019
TRIGONOMETRICAL IDENTITIES - PART – 53
87. [tan A + 1 / cos A]
2
+ [tan A – 1 / cos A)]
2
=
[1 + sin A / 1 – sin A]
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment