document.write( "Question 314855: for the function f(x) = tan x, show that \r
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Algebra.Com's Answer #225214 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"f%28x%2By%29-f%28x%29+=+Tan%28x%2By%29-Tan%28x%29+=+%22%22\" \r\n" );
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document.write( "\"%28Tan%28x%29%2BTan%28y%29%29%2F%281-Tan%28x%29Tan%28y%29%29-Tanx=+%22%22\"\r\n" );
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document.write( "\"%28Tan%28y%29%2BTan%5E2xTan%28y%29%29%2F%281-Tan%28x%29Tan%28y%29%29+%0D%0A\"\r\n" );
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document.write( "\"%28Tan%28y%29%281%2BTan%5E2x%29%29%2F%281-Tan%28x%29Tan%28y%29%29+%0D%0A\"\r\n" );
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document.write( "\"%28Tan%28y%29Sec%5E2x%29%2F%281-Tan%28x%29Tan%28y%29%29+%0D%0A\"\r\n" );
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document.write( "\"%28Sec%5E2x%2ATan%28y%29%29%2F%281-Tan%28x%29Tan%28y%29%29+%0D%0A\"\r\n" );
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document.write( "Edwin

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