document.write( "Question 1128743: Given cos (theta/2) = a and sin (2 theta) = b, find tan (theta)
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Algebra.Com's Answer #745240 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "1.  If    = a,  then   =  = .        (1)\r\n" );
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document.write( "2.  If   = b,  then   = b,\r\n" );
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document.write( "    hence,   =  = (substitute from (1)) = .\r\n" );
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document.write( "3.  Then   =  =  :  = .        ANSWER \r\n" );
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