if a2+b2=177and ab=54 then find the value of a+b/a-b?	Choose the correct choice from the following:  A) 5  B) 15  C) 6  D) 3  E) 7
(a+b)2=a2+b2+2ab=117+2*24=225   a+b=15   (a-b)2=a2+b2-2ab=117-2*54   a-b=3   a+b/a-b=15/3= 
<gadget id="calculator">15/3</gadget>
<output>5</output>
5   5NSWER 5 5
<result>A</result>
if a2+b2=177and ab=54 then find the value of a+b/a-b?