For QC1 45:45, D is the correct answer, since the question does not tell us the property of variable Z. If Z is not a real number but an imaginary number ( i² = −1.), then the answer would be incorrect. if z=3i , then the answer would be -9.
I have a question the last QC that u clear out 12a² I think quantity B should be greater because there's a condition saying a>0 given us an option to input any greater than zero value in both QA and QB, and if I add any same number at all thats > 0 QB is always greater. This should logically tell us QB is greater? Please ill need a response sir thanks ❤❤
tested it with number he found for QB: 1.66. Plugged that into both and got the same value (QA=QB). Plugged in a number below it but above 0 (ex. 1) and got QAQB. so it is D, unfortunately
Hi! Thanks for reaching out. I'd be happy to take a look and try to help out. Can you provide a Timestamp to the question in the video that is giving you trouble, as well as a bit more info on the confusion?
Outstanding material for gre
Thanks a lot,
It's a very simple way for explanation
Thank you so much 🙏
For QC1 45:45, D is the correct answer, since the question does not tell us the property of variable Z. If Z is not a real number but an imaginary number ( i² = −1.), then the answer would be incorrect. if z=3i , then the answer would be -9.
true i have the same doubt
@@ChiruSKM The problem never specified z to be a real number. So D should be the answer.
this is why some gre problems typically have a disclaimer that say "x and y are real numbers/positive/integers/etc."
The GRE does not include the concept of imaginary numbers so you do not need to worry about this
I have a question the last QC that u clear out 12a² I think quantity B should be greater because there's a condition saying a>0 given us an option to input any greater than zero value in both QA and QB, and if I add any same number at all thats > 0 QB is always greater. This should logically tell us QB is greater? Please ill need a response sir thanks ❤❤
Owww sorry I tried a = 10 and QA was greater😅 my bad, thanks for helping out
Even with the 10 you tried QB is greater than QA
tested it with number he found for QB: 1.66. Plugged that into both and got the same value (QA=QB). Plugged in a number below it but above 0 (ex. 1) and got QAQB. so it is D, unfortunately
There is a condition of 'a' greater than 0 that means fraction also possible if they give 'a' as positive integer than your answer is correct.
Thank you
i canot understand your last quantity product
Thanku
If Delta=0, there is one solution and its sign is from the sign of a.
Why did say that it is negative
Hi! Thanks for reaching out. I'd be happy to take a look and try to help out. Can you provide a Timestamp to the question in the video that is giving you trouble, as well as a bit more info on the confusion?
Outstanding material for gre