document.write( "Question 1144563: The total resistance, R, in a parallel circuit with three resistances, R1, R2, and R3, is given by the formula\r
\n" ); document.write( "\n" ); document.write( "1 over R equals 1 over R subscript 1 plus 1 over R subscript 2 plus 1 over R subscript 3\r
\n" ); document.write( "\n" ); document.write( "Simplify the right-hand side of the equation.
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Algebra.Com's Answer #765715 by Alan3354(69443)\"\" \"About 
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The total resistance, R, in a parallel circuit with three resistances, R1, R2, and R3, is given by the formula\r
\n" ); document.write( "\n" ); document.write( "1 over R equals 1 over R subscript 1 plus 1 over R subscript 2 plus 1 over R subscript 3\r
\n" ); document.write( "\n" ); document.write( "Simplify the right-hand side of the equation.
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\n" ); document.write( "\"1%2FR+=+1%2FR1+%2B+1%2FR2+%2B+1%2FR3\"
\n" ); document.write( "DEN = R1*R2*R3
\n" ); document.write( "--------
\n" ); document.write( "\"1%2FR+=+%28R2%2BR3%29%2FDEN+%2B+%28R1%2BR3%29%2FDEN+%2B+%28R1%2BR2%29%2FDEN\"
\n" ); document.write( "1/R = 2(R1 + R2 + R3)/DEN
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\n" ); document.write( "I recommend doing theM 2 at a time:
\n" ); document.write( "For R1 & R2:
\n" ); document.write( "R4 = R1*R2/(R1+R2)
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\n" ); document.write( "Then, R = R4*R3/(R4+R3)\r
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