For a direct sum of Mobius band, it is trivial if it has two linear independent nonvanishing sections. I have the following as my sections：(adsbygoogle = window.adsbygoogle || []).push({});

s1=(E^(i*theta), (Cos(theta/2), Sin(theta/2))

s2=(E^(i*theta), (-Sin(theta/2), Cos(theta/2))

Clearly, the above sections are linearly independent and nonvanishing, but I am not sure if they are indeed the correct ones, need help to confirm!

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# Nonvanishing section for direct sum of Mobius band

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