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owlet
 one year ago
Is cos(x) = cos x? why?
I'm confused.
owlet
 one year ago
Is cos(x) = cos x? why? I'm confused.

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owlet
 one year ago
Best ResponseYou've already chosen the best response.0oh is it because of the graph? symmetrical to the yaxis then sin x is odd because it is symmetrical to the origin?

freckles
 one year ago
Best ResponseYou've already chosen the best response.2cos(x) is an even function f(x)=f(x) means f is an even function what even function is that it is symmetrical about the yaxis this means the graph can be founded about the line that is called the yaxis and see half the graph lay perfectly over the other half

freckles
 one year ago
Best ResponseYou've already chosen the best response.2and yes sin(x) is odd so sin(x)=sin(x)
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