Some trigonometry

Discussion in 'Physics & Math' started by §outh§tar, Sep 19, 2008.

  1. §outh§tar is feeling caustic Registered Senior Member

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    Show that \(\cos x < \left( {\frac {{\sin x}}{x}} \right)^3\) for \(|x| \in ]0,\frac {\pi }{2}[\)
     

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