Saturday, 27 July 2019
TRIGONOMETRICAL IDENTITIES - PART – 75
109. If tan A + sin A = m and tan A – sin A = n;
prove that
m
2
– n
2
= 4 (mn)
1/2
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment