if a2 + b2 =45 and ab =18 then value of 1/a +1/b equals to Share with your friends Share 0 Abhideep answered this 7per root but 6 per root nahi hai 0 View Full Answer Abhideep answered this root 7/6 -4 Ashutosh Anand answered this a a2 + b2 = 45 ................. (1)ab = 18 ............(2):. from (1) & (2)a2 + b2 + 2ab = 45 + (2 X 18)(a + b)2 = 45 + 36 =81:., a + b = +-9 ................ (3)from (3) &(2)1/a + 1/b = (a+b)/ab = +-9/18= +-1/2hope it helps 3 Sahil answered this if x/y+y/x=8 then x^4/y^4+y^4/x^4+? 0
