I'm stuck on a question in linear algebra, it reads "Show that the subset S={cos mx, sin nx: m between 0 and infinity, n between 1 and infinity} is linearly independent.(adsbygoogle = window.adsbygoogle || []).push({});

I really just don't know where to start. I've seen a similar question which was just sin (nx) and the lecturer integrated sin(px)sin(qx) between -pi and pi but I just don't see why he did that or anything.

Any starting help would be much appreciated, thanks.

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# Homework Help: Linear independence problem

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