Arccos as inverse cosine

From specialfunctionswiki
Revision as of 20:06, 22 November 2016 by Tom (talk | contribs) (Created page with "==Theorem== The restricted arccos function $\rm{arccos} \colon [-1,1] \rightarrow [0,\pi]$ is the inverse function of the restricted cosine function $\cos \colon \...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

Theorem

The restricted arccos function $\rm{arccos} \colon [-1,1] \rightarrow [0,\pi]$ is the inverse function of the restricted cosine function $\cos \colon \left[0,\pi\right] \rightarrow [-1,1]$.

Proof

References