ern5231 Master | Next Rank: 500 Posts View User Profile Posts: 226 Joined: Sun Aug 09, 2009 4:34 am 176 another inequalities with ds by ern5231 » Wed Oct 07, 2009 5:04 pm Is a^2-ab<0? 1) b<0 2)ab<0 The OA given is E but I feel it should be B. It is given that ab<0. Hence a^2-(-ve)=>a^2+... which is positive. Hence >0 and should be sufficient. What is you opinion? Top Quote