document.write( "Question 39227: Find the foci of the graph. Then draw the graph.
\n" ); document.write( "x^2/16 - y^2/36 = 1
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Algebra.Com's Answer #24854 by venugopalramana(3286)\"\" \"About 
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X^2/16 - Y^2/36 =1\r
\n" ); document.write( "\n" ); document.write( "THE EQN. OF A HYPERBOLA.STD.EQN.IS.
\n" ); document.write( "(X-H)^2/A^2 - (Y-K)^2/B^2=1..WHERE
\n" ); document.write( "(H,K) IS CENTRE.....(0,0) HERE
\n" ); document.write( "A=4 AND B=6
\n" ); document.write( "ECCENTRICITY =E =SQRT[(A^2+B^2)/(A^2)]=SQRT[(16+36)/16]=SQRT(13)/2\r
\n" ); document.write( "\n" ); document.write( "A*E=4*SQRT(13)/2=2SQRT(13)
\n" ); document.write( "FOCI ARE (H+-AE,K)......(+2SQRT(13),0)
\n" ); document.write( "AND ......(-2SQRT(13),0)\r
\n" ); document.write( "\n" ); document.write( "GRAPH IS GIVEN BELOW..
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