sruggles12 sruggles12

16-03-2017
Mathematics

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Suppose theta is in the interval (90, 180). Choose whether the sign of tan(theta/2) is positive or negative.

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LammettHash LammettHash

16-03-2017

[tex]90^\circ<\theta<180^\circ\implies45^\circ<\dfrac\theta2<90^\circ[/tex]

[tex]\tan\theta>0[/tex] for [tex]\theta[/tex] in this interval.

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