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IF x,y belongs toR AND x²+y²+xy=1,then minimum value of

x³y+xy³+4=?

6 Answers

ans) 3

x³y+y³x=xy-(xy)²

Now try to prove....

similar one done yesterday ..

ans is 2 yaarrrrrrrrrrrrrrrrr

forget the answer.. see the hint given..

as bhargav said this was a question discussed yesterday too!

http://targetiit.com/iit-jee-forum/posts/a-couple-more-15969.html

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