If (x/y)=(11/5), find the value (x^2+y^2)/(x^2-y^2) Choose the correct answer:
A) 73/48 B) 59/11 C) 51/77 D) 41/11 E) None of them
= (x^2+y^2)/(x^2-y^2) = ( x^2 /y^2+ 1)/ ( x^2 /y^2-1) = [(11/5)^2+1] / [(11/5)^2-1]   = [(121/25)+1] / [(121/25)-1] = 73/48   73/48nswer is 73/48.
<result>A</result>
If (x/y)=(11/5), find the value (x^2+y^2)/(x^2-y^2)