document.write( "Question 41619: Use the Intermediate Value Theorem to show that the graph of the function has a zero in the given interval. Round the zero to two decimal places.
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document.write( " f(x) = 2x3 + x2 – x – 5; [1, 2] Please help \n" );
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Algebra.Com's Answer #26915 by venugopalramana(3286)![]() ![]() You can put this solution on YOUR website! Use the Intermediate Value Theorem to show that the graph of the function has a zero in the given interval. Round the zero to two decimal places. \n" ); document.write( "f(x) = 2x3 + x2 – x – 5; [1, 2] Please help \n" ); document.write( "F(1)=2+1-1-5=-3 \n" ); document.write( "F(2)=2*2^3+2^2-2-5=16+4-2-5=13 \n" ); document.write( "F(X) IS CONTINUOUS IN THIS RANGE AND CHANGES ITS SIGN FROM -VE TO +VE.HENCE IT HAS ZERO IN THIS RANGE \n" ); document.write( "NARROWING THE RANGE TO GET AT THE ZERO..TRY X=(1+2)/2=1.5 \n" ); document.write( "F(1.5)=2.5.. \n" ); document.write( "THEN...TRY...(1+1.5)/2=1.25 ..F(1.25)=-0.78 \n" ); document.write( "THEN ..TRY....(1.25+1.5)/2=1.375....F(1.375)=0.714.......ETC..\r \n" ); document.write( "\n" ); document.write( "WE FIND BY TRIAL THAT AT X=1.32 F(X)=0 \n" ); document.write( " |