Question

Is the trig function: even, odd, neither y=cosx?

Answer 1

here is your answer mate... f(x)=cosx and when we find f(-x) it will be cosx beacause if you remember cos(-x) it is cosx ....so we conclude that f(x)=cosx =f(-x) so this is an even function....thank you and if you find it helpfull just say thank you