Skip to content
Mathematico
Main Navigation
Learn
Pure
Problems
Past papers
GitHub
Appearance
GitHub
Menu
Return to top
On this page
Table of Contents for current page
Prove the identities:
tan
x
=
1
−
cos
2
x
sin
2
x
tan
(
θ
+
π
4
)
≡
1
+
sin
2
θ
cos
2
θ