Question 364569
{{{1/R=(1/R[1])+(1/R[2])+(1/R[3]) }}}
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{{{R[1]*R[2]*R[3]=R*R[2]*R[3]+R*R[1]*R[3]+R*R[1]*R[2]}}}
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{{{R[1]*R[2]*R[3]-R*R[2]*R[3]-R*R[1]*R[2]=R*R[1]*R[3]}}}
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{{{R[2](R[1]*R[3]-R*R[3]-R*R[1])=R*R[1]*R[3]}}}
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{{{highlight(R[2]=(R*R[1]*R[3])/(R[1]*R[3]-R*R[3]-R*R[1]))}}}