Pure Maths 12 today........

[Zuhair Rayyes]

so... I wasnt the only one who didnt do well, i lost atleast 18 points

 

[hussamh10]

I didn't understand Vectors question part ii/ ,What were we supposed to do ?

I made the magnitude of AO and OB equal to each other,got K = +-0.685

And the last question, Area was 76.4 and Perimeter 35 ?

yeah you are right me neither understand it still

 

[Iadmireblue]

For the vectors question,I did OA.OB and the modulus of that should equal one
I equated it and got some answer :/
Do you remember the angle from the identities

 

[Gunner7]

For the vectors question,I did OA.OB and the modulus of that should equal one
I equated it and got some answer :/
Do you remember the angle from the identities

The '2y' one ? 15 and 75

 

[mhalvi]

I didn't understand Vectors question part ii/ ,What were we supposed to do ?

I made the magnitude of AO and OB equal to each other,got K = +-0.685

And the last question, Area was 76.4 and Perimeter 35 ?

except for k rest are correct

 

[mhalvi]

The '2y' one ? 15 and 75

Exactly!!

 

[Z.S.M]

The '2y' one ? 15 and 75

Same answers!

 

[Z.S.M]

i got k=2
the last was so ewwww.....

 

[Gunner7]

i got k=2
the last was so ewwww.....

Can you explain how you got K=2 please? I remember question saying 'values' so there should be more than one.

 

[Z.S.M]

THRESHOLD PEOPLE???????? Less than 65??????

 

[yazan1995]

THRESHOLD PEOPLE???????? Less than 65??????

the grade threshold is usually very close every year 58-62 for A

 

[Beca1206]

What was number eleven again folks??

 

[Z.S.M]

What was number eleven again folks??

the one with circle inside a sector......

 

[Z.S.M]

and what about question 10 part (b)?
it took the third derivative *fingers crossed*

 

[Z.S.M]

Can you explain how you got K=2 please? I remember question saying 'values' so there should be more than one.

don't remember.........

 

[elbeyon]

and what about question 10 part (b)?
it took the third derivative *fingers crossed*

We were supposed to find out the second derivative in that case.

 

[elbeyon]

Can you explain how you got K=2 please? I remember question saying 'values' so there should be more than one.

We get two values for k ! I forgot that now but I got two values. We were supposed to equate the modulus to 1 (i.e Unit ).

 

[balay]

the q regarding b^2 - 4ac.......q3 i think......was k=-1?

 

[elbeyon]

the q regarding b^2 - 4ac.......q3 i think......was k=-1?

Which question are you talking about ??

 

[rizwaan]

how to do the equation of tangent. Do you hve to do dy/dx?