Hey guys.
cos(n*x) when n is natural and x=pi equals to (-1)^n as I wrote in the pic.
What I'm looking for is the same thing in sinus, lets say again that n is natural, is there a x that can make sinus to behave something like cos? and by that I mean an expression that can be written in on line like (-1)^n (x can be anything).
I hope that was understood.
Thanks in advance.
Hey Mathstud28.
This is not what I meant (thanks a lot due ).
I gave the cos just as an example.
I have the function f(x) = sin(nx), and I need to find any x that will give me the ability to write the result in one line.
Lets take again x = pi/2 f(x) = sin(n*p/2) = {0 when n=0, 1 when n=1, 0 when n=2, -1 when n=3 and so on...} is there a way to write this expression in one line that will be depend in n? (just like cos(nx) = (-1)^n)
Again, thanks a lot.