document.write( "Question 253719: How would I prove that tan x (cot x + tan x) = sec^2x ?? \n" ); document.write( "
Algebra.Com's Answer #186052 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"Tan%28x%29+%28Cot%28x%29+%2B+Tan%28x%29%29+=+Sec%5E2x\" \r\n" );
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document.write( "\"Tan%28x%29%2ACot%28x%29+%2B+Tan%5E2x+=+%22%22\"\r\n" );
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document.write( "\"Tan%28x%29%281%2F%28Tan%28x%29%29%29+%2B+Tan%5E2x+=+%22%22\"\r\n" );
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document.write( "\"cross%28Tan%28x%29%29%281%2F%28cross%28Tan%28x%29%29%29%29+%2B+Tan%5E2x+=+%22%22\"\r\n" );
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document.write( "\"1+%2B+Tan%5E2x+=+%22%22\"\r\n" );
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document.write( "\"Sec%5E2x+=+%22%22\"\r\n" );
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document.write( "Edwin
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