document.write( "Question 1111026: α=3/7π rad. Angle θ is such that π/2<θ<2π and sec(α)=sec(θ).
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Algebra.Com's Answer #726022 by ikleyn(52864)\"\" \"About 
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document.write( "We are given \"alpha\" = \"%283pi%29%2F7\",\r\n" );
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document.write( "angle \"theta\" is such that  \"pi%2F2\" < \"theta\" < \"2pi\"  and  \"cos%28alpha%29\" = \"cos%28theta%29\".\r\n" );
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document.write( "Then  \"theta\" = \"2pi+-+%283pi%29%2F7\" = \"%2814pi%29%2F7+-+%283pi%29%2F7%29\" = \"%2811pi%29%2F7\".\r\n" );
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document.write( "Answer.  \"theta\" = \"%2811pi%29%2F7\".\r\n" );
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