document.write( "Question 168554: I need help verifying these identities.
\n" ); document.write( " $\"Sin%28x%29Cos%28x%29%2BCos%5E2x+=+Cos%28x%29%281%2BCot%28x%29%29%2FCsc%28x%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"%28Sec%28x%29-Tan%28x%29%29%5E2+%2B+%28Sec%28x%29%2BTan%28x%29%29%5E2+=+2%2B4Tan%5E2x\"$ \n" ); document.write( "

Algebra.Com's Answer #124270 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!
): I need help verifying these identities.
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document.write( "Work with the right \r\n" );
document.write( "side.  Substitute\r\n" );
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document.write( "for  and\r\n" );
document.write( "substitute \r\n" );
document.write( "for \r\n" );
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document.write( "                      = \r\n" );
document.write( "Distribute out the\r\n" );
document.write( "numerator:\r\n" );
document.write( "                      = \r\n" );
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document.write( "Put a 1 under the \r\n" );
document.write( " so everything\r\n" );
document.write( "will be a fraction \r\n" );
document.write( "                      = \r\n" );
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document.write( "Invert the fraction\r\n" );
document.write( "in the denominator \r\n" );
document.write( "and multiply:\r\n" );
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document.write( "                      = \r\n" );
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document.write( "Swap the fraction factors:\r\n" );
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document.write( "                      =                    \r\n" );
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document.write( "Distribute:\r\n" );
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document.write( "                      =  \r\n" );
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document.write( "                      = \r\n" );
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document.write( "                      = \r\n" );
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document.write( "AND \r\n" );
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document.write( "Work with the left side. \r\n" );
document.write( "Square out the two \r\n" );
document.write( "binomials:\r\n" );
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document.write( " =\r\n" );
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document.write( "Use the identity  and\r\n" );
document.write( "replace  by \r\n" );
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document.write( "Distribute:\r\n" );
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document.write( "Combine like terms:\r\n" );
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document.write( "Edwin

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