Isn’t it true that if B is invertible then B DNE 0, and if B DNE 0 then the only way to have BC = 0 is to have C = 0?(adsbygoogle = window.adsbygoogle || []).push({});

I'm not seeing (perhaps because I don't want to ;)) how the above is not always true. Can anyone show me an example proving me wrong?

Thanks!

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# If BC = 0 where B is invertible, show C = 0

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