Explanation of an answer – math.stackexchange.com

Let $f(x)=\cos^{-1}(\cos\;x)$. a) What does f(x) mean and what should it be? A: $f(x)=\cos^{-1}(\cos\;x)=x$. b) Test your answer in a) for $x=1,\;2,\;3,\;4$. A: ...

from Hot Questions - Stack Exchange OnStackOverflow
via Blogspot

Share this

Google Facebook Twitter More

• Digg
• Linkedin
• Stumbleupon
• Delicious
• Tumblr
• BufferApp
• Pocket
• Evernote

Unknown