Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
(1) |y|> 1. Probably the easiest way to deal with this statement would be to plug some numbers. Notice that \(|y|> 1\) means that \(y<-1\) or \(y>1\). Now, if \(y=2\) and \(x=-4\) then the answer is YES but if \(y=-2\) and \(x=4\) then the answer is NO. Not sufficient.
(2) |x| < 3 --> \(-3<x<3\): directly gives an YES answer to the question. Sufficient.
From the question: xy<3 => x,y can be both positive and negative or, opposite signs. x(-2)y(3)<3 1. |y| > 1 => y>1 y<-1 => y can take 2, 3, 4, 5 or -2, -3, -4, -5.. if y=-6 and x=6 xy is -36 <3. If y=-1, x=-2 xy<3. here x = 6 in one case and -2 in another case. Hence Insufficient. 2. |x|<3 => -3<x<3 . No matter what the values of x are, it will be <3. Sufficient. _________________
Check out this awesome article about Anderson on Poets Quants, http://poetsandquants.com/2015/01/02/uclas-anderson-school-morphs-into-a-friendly-tech-hub/ . Anderson is a great place! Sorry for the lack of updates recently. I...