Mathematics 9709/32

[fathimaash]

i dint get that one correct but as far as i remember ppl said b was 12 and c=-1

Ya I got b as -4 c as -1 and d as 12

 

[lionkill3r]

Ya I got b as -4 c as -1 and d as 12

I also got the same !

 

[terrible]

i got b=-4 and c=-1 and d 16
how did u get the d

 

[fathimaash]

Wat ws da answers fr da complex no??

 

[terrible]

i guess root 8 -2i

 

[fathimaash]

i guess root 8 -2i

Ohh I got 8-2i. I would hv gone wrong somewher.

 

[terrible]

Ohh I got 8-2i. I would hv gone wrong somewher.

how did u get the d

 

[fathimaash]

how did u get the d

I multiplied my normal vector of the plane i.e (1,-4,- 1) into the position vector of OA.

 

[terrible]

I multiplied my normal vector of the plane i.e (1,-4,- 1) into the position vector of OA.

i did the same thing but i can't remember if c was positive or -ve 1

 

[terrible]

and how did u do x-coordinate of M

 

[Nafee Papers]

the x co-ordinate of the maximum point in q5 is root3a......? and the answer to q 6, the sec x tan x sum, is it ln[(2root3)/3]?.........and the answer to q 7, cos(45+x) thing, how angles are there......i got 261.9 degrees

 

[fathimaash]

and how did u do x-coordinate of M

Differentiated it equated it to 0. den found a equation y2=somthng and den substituted in the main equation nd got the value of x in terms of a.

 

[fathimaash]

the x co-ordinate of the maximum point in q5 is root3a......? and the answer to q 6, the sec x tan x sum, is it ln[(2root3)/3]?.........and the answer to q 7, cos(45+x) thing, how angles are there......i got 261.9 degrees

Yea I remember gettin da same thing.

 

[Haris Gala]

Q6 ka answer was something like LN [(3 + or minus 2rt3)/3] It was correct cause I checked it in the calculator.

I got two angles in question 7. First being something like (360-25.26(w/e the angle was) - 71. something (the alpha). Second angle was 360 + 25.26 - 71.sth.

Due to time constraints, I couldn't manage the last part of vectors and was unable to substitute the Y into the initial eq in q5. So I guess, raw marks I'll obtain are somewhere around 63, give or take 2.

Can anyone confirm the answer to the second part of Q9, the greatest distance? Was it rt8 + 2?

 

[lionkill3r]

Q6 ka answer was something like LN [(3 + or minus 2rt3)/3] It was correct cause I checked it in the calculator.

Can anyone confirm the answer to the second part of Q9, the greatest distance? Was it rt8 + 2?

It was 3.70 they asked the answer to 2 dp

 

[sagystu]

what was the question of the complex no , i cant remember it , could u help remember it so i can remember my answer :S

 

[haroon740]

PAST IS PAST

the differentiation ques was similar to the one in m/j 08 although i solved it half whenever i think of that ques i think of how dumb i am

ITS TYME TO ROCK PHYSICSSSSSS

 

[abbey789]

I got

Ohh.. wat ws da equation of the plane??

y-2z=7

 

[abbey789]

and for the differentiation i got 2a. But i replaced it with y=0 at the end (3x^2+y^2-6ax)

 

[sagystu]

any body know a markscheme for this exam ...u know the hand written ones !