Could you please help me understand how you found the lower limit i.e x should be greater than 4/9. I did refer to the previous post as well.But I am not clear with it.
Thanking you in advance.
Could you please help me understand how you got the lower limit as greater than 4/9. I did try going through the previous post on this topic.Still I need more clarity on this.
It is rt(4+rt(4-something)). Now this ‘something’ is within a rt sign, so cannot be negative by definition. Hence, it must be rt(4+rt(less than 4)) which is less than rt(4+rt4).
What about x<-2 in the example from CAT 2005?
By rk1 on November 25, 2014 at 3:36 AM
Never mind just read the square root function post.
By rk1 on November 25, 2014 at 3:56 AM
Since it is within a square root sign, it is treated as positive only 🙂
regards
J
By catcracker on November 25, 2014 at 10:37 AM
Could you please help me understand how you found the lower limit i.e x should be greater than 4/9. I did refer to the previous post as well.But I am not clear with it.
Thanking you in advance.
By Savio Poulose on August 22, 2016 at 12:25 PM
Could you please help me understand how you got the lower limit as greater than 4/9. I did try going through the previous post on this topic.Still I need more clarity on this.
By Savi on August 22, 2016 at 12:30 PM
1/[2+1/(4+something positive)]
= 1/[2 + (less than 1/4)]
= 1/[less than 2.25]
= (greater than 1/2.25)
= (> 4/9)
regards
J
By catcracker on August 22, 2016 at 1:41 PM
Could you please help me understand how you found the lower limit i.e x should be less than root(4+root(4)). In cat 2005 qstion?
By Aron on December 13, 2018 at 12:48 PM
It is rt(4+rt(4-something)). Now this ‘something’ is within a rt sign, so cannot be negative by definition. Hence, it must be rt(4+rt(less than 4)) which is less than rt(4+rt4).
regards
J
By catcracker on December 13, 2018 at 4:11 PM
how do we solve second question using “x” variable on RHS
By sejal on October 10, 2019 at 11:17 PM
Extremely painfully! Which is why this approach instead. If you have to do that kind of method, leave the question.
regards
J
By catcracker on October 11, 2019 at 10:56 AM