Maths (Paper 3)

[fusionistics]

Guys how do you show that something is the only root of an equation

 

[samy]

P3 , I am coming! P3s goin' down!!!!!!!! :Bravo:

dude u r so confidentt ..i wish i was dat much too!!!!

 

[reekx94]

Guys how do you show that something is the only root of an equation

put its solution into the equation and should equal to zero. for example if the root is (2X+3) then substitute -3/2 into the equation and you should get zero.

 

[fusionistics]

Guys how do you show that something is the only root of an equation

put its solution into the equation and should equal to zero. for example if the root is (2X+3) then substitute -3/2 into the equation and you should get zero.

But won't that only show that it's A root of the equation. Or would it also show that it's the only one?

 

[ahmed t]

if u have a polynomial divide by the root like(x+3) and get the quadratic and it should have no real roots

 

[cool]

if the equation is quadratic, then b^2 _ 4ac shud be equal to zero.if its less than zero no root..if it is greater than zero, there r 2 roots....

 

[cool]

GOOD LUCK!!

 

[reekx94]

aaah you want to prove its the only root....yeah use the discriminant like he said.

 

[samy]

listennnnn wen asked to draw argand diagram should v draw it on graph paper ya phr on paper

 

[ks136]

listennnnn wen asked to draw argand diagram should v draw it on graph paper ya phr on paper

ur choice :wink: ...well i choose paper

 

[ks136]

 

[abuhantash]

Yo, good people out there. I know your not in the mood, but please, answer november 2003 Q7 (iii)
I took the arg for the point (-1+2i) How did the arg become 2.21?? Im getting 2.03

 

[ks136]

recited it 99 times...feeling blessed now

 

[abuhantash]

recited it 99 times...feeling blessed now

Same here A million thank you and inshallah our prayers will get answered.

 

[ks136]

recited it 99 times...feeling blessed now

Same here A million thank you and inshallah our prayers will get answered.

INSHALLAH...Our Allah is with us..then why r v afraid....
We will show them who we are :x :x :x

 

[deathvalley]

just finished the paper, it was quiet easy comparing to last year, I actually don't like it because it will bring the grade threshold very high T_T

 

[zeena123]

It was such a good paper!

 

[fusionistics]

just finished the paper, it was quiet easy comparing to last year, I actually don't like it because it will bring the grade threshold very high T_T

Which paper did you guys give?

I did P32 and it was horrible.

 

[WellWIshER]

p32 waw ***** hard!!!

 

[deathvalley]

lost maximum 20marks if I don't make silly mistake in anything else I had 32