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Set of values of 'alpha' in [0,\ 2pi] fo...

Set of values of `'alpha'` in `[0,\ 2pi]` for which `m=(log)_(("x"+1/"x"))(2sinalpha-1)lt=0,` is `[pi/6,(5pi)/6]` (b) `(pi/6,(5pi)/6)` `(0,pi/6)uu((5pi)/6,\ pi)` (d) `((5pi)/6,(7pi)/6)`

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