2KiB, 332x63, asd.png View SameGoogleiqdbSauceNAO sum of two cosines Anonymous Sun 20 Oct 13:16:23 2019 No.11076525 ViewReplyOriginalReport Quoted By: i know that... but what about the sum if the amplitudes are not the same? i.e.: 2*cos(x)+4*cos(y)=?