Posted by j on Friday, November 23, 2012 at 2:34am.
the reciprocal of the expression 2/x + 3/1

math  hello123456789, Friday, November 23, 2012 at 2:36am
the reciprocal of the expression
2/x + 3/1 
math  Steve, Friday, November 23, 2012 at 5:23am
2/x + 3/1 = (2*1 + 3*x)/x = (2+3x)/x
so, the reciprocal is
x/(2+3x)
check a value, say x=1
2/1+3/1 = 5
1/(2+3) = 1/5