Sunday

December 21, 2014

December 21, 2014

Posted by **elena** on Saturday, May 5, 2012 at 8:25pm.

f(¦È)=sin¨¨ and f(¦È)=sin(-¦È).

f(¦È)=cos¨¨ and f(¦È)=cos(-¦È).

What conclusions can you make?

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