document.write( "Question 1185013: Find the dimensions and the area of the largest rectangle that can be fit under the graph of y = sin(x), 0 <= x <= π, if one side of the rectangle lies on the positive x-axis. \n" ); document.write( "
Algebra.Com's Answer #815709 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "the area of the largest rectangle:\r
\n" ); document.write( "\n" ); document.write( "\"A=L%2AW\"\r
\n" ); document.write( "\n" ); document.write( "\"L=pi-2x\"
\n" ); document.write( "\"W=sin%28x%29\"\r
\n" ); document.write( "\n" ); document.write( "\"A=%28pi-2x%29%2Asin%28x%29\"\r
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\n" ); document.write( "\n" ); document.write( "to maximize, take derivative\r
\n" ); document.write( "\n" ); document.write( "\"A\"'=\"%28pi-2x%29%2Acos%28x%29-2sin%28x%29\"\r
\n" ); document.write( "\n" ); document.write( "equal it to zero\r
\n" ); document.write( "\n" ); document.write( "\"%28pi-2x%29%2Acos%28x%29-2sin%28x%29=0\"\r
\n" ); document.write( "\n" ); document.write( "\"x\"\"0.710462737775517\"\r
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\n" ); document.write( "\n" ); document.write( "then\r
\n" ); document.write( "\n" ); document.write( "\"L=pi-2%2A0.710462737775517=1.720667178038759\"
\n" ); document.write( "\"W=sin%280.710462737775517%29=0.652184623909187\"\r
\n" ); document.write( "\n" ); document.write( "\"A=1.720667178038759%2A0.652184623909187\"\r
\n" ); document.write( "\n" ); document.write( "\"A+\"\"1.12\" square units\r
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