use pre cal methods to figure out this question.
2006-11-13 11:28:37 · 5 answers · asked by colin r 1 in Science & Mathematics ➔ Mathematics
((1/x) + (1/y)) / ((1/x) - (1/y))
((y + x)/xy) / ((y - x)/xy)
((y + x)/xy) * ((xy)/(y - x))
(xy(y + x))/(xy(y - x))
(y + x)/(y - x) = (x + y)/(-x + y) = (x + y)/(-(x - y)) = -(x + y)/(x - y)
2006-11-13 13:58:52 · answer #1 · answered by Sherman81 6 · 0⤊ 0⤋
((1/x) - (1/y))^2
2006-11-13 11:31:04 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Question (1/x +1/y)/(1/x -1/y)
FOIL
(1/x^2) - (1/y^2)
(y^2 - x^2)/(x^2)(y^2)
2006-11-13 11:32:09 · answer #3 · answered by trackstarr59 3 · 0⤊ 0⤋
Use FOIL, just like in normal numbers
2006-11-13 11:31:21 · answer #4 · answered by Anonymous · 0⤊ 0⤋
search algebra 2 - this is basic algebra
2006-11-13 11:35:35 · answer #5 · answered by wicked_wahine 2 · 0⤊ 0⤋