document.write( "Question 1087885: Choose the correct right hand side to make the equation an identity.
\n" ); document.write( "(cscx + cotx)^2=________\r
\n" ); document.write( "\n" ); document.write( "select one:\r
\n" ); document.write( "\n" ); document.write( "a. (cosx-1)^2/sin^2x
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Algebra.Com's Answer #702183 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"%28csc%5E%22%22%28x%29%5E%22%22%2Bcot%5E%22%22%28x%29%29%5E2\"\"%22%22=%22%22\"\r\n" );
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document.write( "Change to sines and cosines:\r\n" );
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document.write( "\"%281%2Fsin%28x%29%2B1%2Ftan%28x%29%29%5E2\"\r\n" );
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document.write( "Make up a value for x, say 20°.\r\n" );
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document.write( "Use a calculator to calculate\r\n" );
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document.write( "\"%281%2Fsin%28%2220%B0%22%29%2B1%2Ftan%28%2220%B0%22%29%29%5E2=32.16343748\"\r\n" );
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document.write( "Now calculate each of those:\r\n" );
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document.write( "a. \"%28cos%28%2220%B0%22%29-1%29%5E2%2Fsin%5E2%28%2220%B0%22%29=0.0310912041\"\r\n" );
document.write( "b. \"%28cos%28%2220%B0%22%29%2B1%29%5E2%2Fsin%5E2%28%2220%B0%22%29=32.16343748\"\r\n" );
document.write( "c. \"%28sin%28%2220%B0%22%29-1%29%5E2%2Fcos%5E2%28%2220%B0%22%29=0.4902905966\"\r\n" );
document.write( "d. \"%28sin%28%2220%B0%22%29%2B1%29%5E2%2Fcos%5E2%28%2220%B0%22%29=2.039606729\"\r\n" );
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document.write( "So the correct choice is b.\r\n" );
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document.write( "Edwin
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