document.write( "Question 954977: If cotA=7/8 then evaluate
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document.write( "1) (1+sinA)(1-sinA)/(1+cosA)(1-cosA)
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document.write( "2) cot^2A \n" );
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Algebra.Com's Answer #583308 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! If cotA=7/8 then evaluate \n" ); document.write( "1) (1+sinA)(1-sinA)/(1+cosA)(1-cosA) \n" ); document.write( "2) cot^2A \n" ); document.write( "*** \n" ); document.write( "use x for A \n" ); document.write( "cotx=7/8 \n" ); document.write( "1) (1+sinx)(1-sinx)/(1+cosx)(1-cosx) \n" ); document.write( "1-sin^2(x)/1-cos^2(x) \n" ); document.write( "cos^2(x)/sin^2(x)=cot^2(x)=49/64 \n" ); document.write( ".. \n" ); document.write( "2) cot^2x=49/64 \n" ); document.write( " |