How do I solve this problem so that all exponents are positive: (x^-1+y^-1)/(x^-1-y^-1)?

0 ⤊

2007-08-23 14:27:22 · 2 answers · asked by W 1 in Science & Mathematics ➔ Mathematics

I assume you mean--simplify the expression.

(x^-1+y^-1)/(x^-1-y^-1)

Multiply numerator and denominator by xy and you have:

(y + x) / (y - x)

2007-08-23 14:48:22 · answer #1 · answered by Northstar 7 · 0⤊ 0⤋

[(1/x)+(1/y)]/[(1/x)-(1/y)]

multiply it with xy it becomes

(y+x)/(y-x)

2007-08-23 14:53:00 · answer #2 · answered by IcyCool 4 · 0⤊ 0⤋