document.write( "Question 1079875: MULTIPLE CHOICE;\r
\n" ); document.write( "\n" ); document.write( " Choose the correct right-hand side to make the equation an identity.\r
\n" ); document.write( "\n" ); document.write( "sin2 x cot2 x = _____________\r
\n" ); document.write( "\n" ); document.write( "Select one:
\n" ); document.write( "a. 1 – cos2 x
\n" ); document.write( "b. 1 + sin2 x
\n" ); document.write( "c. 1 – sin2 x
\n" ); document.write( "d. 1 + cos2 x
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Algebra.Com's Answer #694171 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "\"sin%5E2+%28x%29+cot%5E2+%28x+%29\"...............since \"cot%5E2%28x%29+=+%281%2F%28tan%28x%29%29%29%5E2\", we have\r
\n" ); document.write( "\n" ); document.write( "=\"sin%5E2+%28x%29+%281%2F%28tan%28x%29%29%29%5E2\"............and \"tan%28x%29=sin%28x%29%2Fcos%28x%29\", so we have\r
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\n" ); document.write( "\n" ); document.write( "=\"sin%5E2+%28x%29+%281%2F%28%28sin%28x%29%2Fcos%28x%29%29%29%29%5E2\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "=\"sin%5E2+%28x%29+%28cos%28x%29%2Fsin%28x%29%29%5E2\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "=\"sin%5E2+%28x%29%28cos%5E2%28x%29%2Fsin%5E2%28x%29%29\"................cancel \"sin%5E2+%28x%29+\"\r
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\n" ); document.write( "\n" ); document.write( "=\"cos%5E2%28x%29\"...........since \"cos%5E2%28x%29=1-sin%5E2%28x%29\" , we have\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "=\"1-sin%5E2+%28x%29\"\r
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\n" ); document.write( "\n" ); document.write( "answer: c. \"1+-+sin%5E2%28x%29\"\r
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