Sunday, December 16, 2018

functions - Is sin(arcsin(x)) equal to x?

I have a question.




Is arcsin(sin(x)) or sin(arcsin(x)) always equal to x?



And also for all other trigonometric ratios?

-

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

analysis - Injection, making bijection

I have injection f:A→B and I want to get bijection. Can I just resting codomain to f(A)? I know that every function i...