document.write( "Question 32892: For my college Pre-calc. class I need to prove this:\r
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document.write( "tan^3x-1/tanx-1 = sec^2x+tan x \n" );
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Algebra.Com's Answer #19365 by venugopalramana(3286)![]() ![]() You can put this solution on YOUR website! tan^3x-1/tanx-1 = sec^2x+tan x..USING....A^3-B^3=(A-B)(A^2+AB+B^2) \n" ); document.write( "LHS=[{TAN(X)-1}{TAN^2(X)+TAN(X)+1}]/[(TAN(X)-1]=SEC^2(X)+TAN(X)=RHS...SINCE 1+TAN^2(X)=SEC^2(X) \n" ); document.write( " |