ECAT and MCAT Preparation: Post your doubts here!

[smzimran]

Lol that is not mentioned but anyway thanks.

We have to assume it , Fsc standards you know

 

[hassam]

You can try your method (expansion of determinant), it'll give the same answer (zero), but it'll take way more time. And in Entry tests you don't have much time to expand the determinant and then find the answer.
And Operations on Rows and columns method is easier plus it wouldn't take more than half a minute.

brother cn u tell any site where this method u used is explained

 

[hassam]

well we cud also simply use V=Q/(4 PI EPSILON0*R)

 

[HIMYM forever!!]

Lol i'm a girl
anyway http://tutorial.math.lamar.edu/Classes/LinAlg/DeterminantByRowReduction.aspx
Try this link out.
but in this link they simplify the determinant by row and column operations and then expand as you've learned. What i did was make one whole row equal to zero. Whenever a whole row or column in a determinant is zero, or if two rows or columns become exactly equal, the determinant becomes zero. But keep in mind that if no row or column can be made zero completely by row and column operations, the best you can do is simplify the determinant by these operations, and when the determinant is simplified enough, expand it(your method), as is explained in the link.

 

[hassam]

Lol i'm a girl
anyway http://tutorial.math.lamar.edu/Classes/LinAlg/DeterminantByRowReduction.aspx
Try this link out.
but in this link they simplify the determinant by row and column operations and then expand as you've learned. What i did was make one whole row equal to zero. Whenever a whole row or column in a determinant is zero, or if two rows or columns become exactly equal, the determinant becomes zero. But keep in mind that if no row or column can be made zero completely by row and column operations, the best you can do is simplify the determinant by these operations, and when the determinant is simplified enough, expand it(your method), as is explained in the link.

DID U took frther mathematics??...anywayx thanx.......fsc book1 set language is too weird.......i m scared

 

[HIMYM forever!!]

Or if that's confusing you, open up page 105 of Fsc part 1 mathematics book. The properties are listed there.

 

[HIMYM forever!!]

DID U took frther mathematics??...anywayx thanx.......fsc book1 set language is too weird.......i m scared

Lol i know you'll think this is weird but i'm an Fsc student. But i took additional mathematics courses

 

[hassam]

welll i ll ask u a lot of questions then....dont leave this thread

 

[sab800]

guys how to prepare for the test??? A lot of people whom I talked to are saying that study from the ECAT book available in the market. But there are books from lot of publishers such as faridi, dogar brothers etc. so which publishers book do u guys recommend??? Please give me some advice it will be appreciated a lot.

 

[hassam]

everyone says dogars bt dont knw why....

 

[smzimran]

Yes, i got Dogars ystrday frm urdu bazaar, they say its the highest selling!

 

[hassam]

solve this one

 

[smzimran]

solve this one

C because pressure increases with depth

 

[HIMYM forever!!]

solve this one

I thought it was C but according to google it's A.
I asked a teacher, he says that both options could be correct but he'd go with A.

 

[leadingguy]

assalam O alaikum.... i too wil 4rm now contribute here....(wil only ask) lol
fsc chemistry is really destructive....
physics is good...
didnot seen maths yet..

special thanks to smz IMRan fr creating the thread...

 

[sab800]

Yes, i got Dogars ystrday frm urdu bazaar, they say its the highest selling!

Is this book the one u r talking about????

 

[Zaryab]

guys. Is this thread for ecat students only ? gik, nust, pieas ?

 

[hassam]

for everything like nust giki nts air uni,pieas....every damn engineering uni

 

[hassam]

Is this book the one u r talking about????
View attachment 12294

well i got the one from dogar publishers,,,,,,,dogars unique

 

[smzimran]

Is this book the one u r talking about????
View attachment 12294

Yes!