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[tex]f(x)=\sin[a(b+|x|)]\;\hbox{ and }\; g(x)=\sin[a(b-|x|)][/tex]

Both EVEN function?

It looks even function to me even though it's a sine function( odd function), but the |x| make it an even function where f(-x)=f(x).

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# Is this an even function?

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