document.write( "Question 1208326: if z = [ r , theta ] , (z ^2 + (| z |)^2)/(z + | z |) = cos (theta)(1 + i tan (2/(theta))) , prove that r = 1 \n" ); document.write( "
Algebra.Com's Answer #846678 by ikleyn(52787)\"\" \"About 
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\n" ); document.write( "if z = [ r , theta ] , (z ^2 + (| z |)^2)/(z + | z |) = cos (theta)(1 + i tan (2/(theta))) , prove that r = 1
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\n" ); document.write( "\n" ); document.write( "In your post, the part   tan(2/(theta))   ( which is   \"tan%282%2Ftheta%29\")   is absurdist.\r
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\n" ); document.write( "\n" ); document.write( "There are no doubts that it is incorrect, while a correct version is   tan(2*theta).\r
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\n" ); document.write( "\n" ); document.write( "With this corrected/modified writing, see the solution produced by AI under this link   solution .\r
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\n" ); document.write( "\n" ); document.write( "                        Learn to write Math correctly.\r
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\n" ); document.write( "\n" ); document.write( "Writing Math correctly means check, re-check, then double check and cross-check.\r
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\n" ); document.write( "\n" ); document.write( "If you submit your post without checking,  it is  99%  erroneous.\r
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