Maths paper 12 ???

[Ben Callum]

How was the Maths paper 12

 

[TheJDOG]

It wasn't hard and wansnt easy. It had a new format of question types :/
We would've done much better if the questions were the same as the old questions in past papers.

 

[M.Kabir Nawaz]

what are the area of shaded region?

 

[TheJDOG]

We can discuss that tomorrow ^ Not now.

 

[Ben Callum]

The threshold would be low as the wording of the question were changed

 

[iProcrastinate]

The threshold would be low as the wording of the question were changed

That's not how threshold changes, lol.

 

[BreakingBad]

The only question which actually required thinking would probably be the sin2 theta question. The rest of them required basic concepts.

 

[Tulaib]

The only question which actually required thinking would probably be the sin2 theta question. The rest of them required basic concepts.

We can prove it as reflex angle is b/w 270-360 which is theta, 2*theta will be equal to 540-720 which lies in 3rd and 4th quadrant where sin is -ive.
Also sin2 theta = 2sin theta * cos theta, put the values from (i) the ans will be in negative

 

[Mohamed1212]

Does anyone know how to get the question paper or solution for P11?

 

[BreakingBad]

We can prove it as reflex angle is b/w 270-360 which is theta, 2*theta will be equal to 540-720 which lies in 3rd and 4th quadrant where sin is -ive.
Also sin2 theta = 2sin theta * cos theta, put the values from (i) the ans will be in negative

Yeah I know. I used the first method. Btw, you could get banned for this. It's not been 24 hrs. yet so you can't discuss answers.

 

[Snowysangel]

Guys what was the equation of the tangent in the second last question?

 

[thementor]

Guys what was the equation of the tangent in the second last question?

y= 0.5x 5.5

 

[thementor]

what are the area of shaded region?

0.5833

 

[axetreme.O]

Was the y-coordinate of the maximum in the 8-marks question in decimal/fraction or a whole number?

 

[thementor]

Was the y-coordinate of the maximum in the 8-marks question in decimal/fraction or a whole number?

It was 10.83

 

[Wolfgangs]

In the sequence questions, in part one, we were asked to find common ratio only, right?

 

[Mir Murtaza Saeed]

If the paper was really tough one then surely A grade will be around 58 to 60 marks..! Candidates who managed to do the paper well will have bonus point. No worries you people have S1 remaining so work hard and give ur best..! Dont lose heart and concentrate on your remaining papers.. May Allah Bless u all with straight As Good Luck !

 

[Wolfgangs]

For the second question, I didn't put the negative sign, as we never studied that in P1. I did the normal working and got the exact answer without the negative sign. Is that even considered wrong?

 

[Kulsum Shoaib]

It was 10.83

For finding the constant c when differentiating, you did take 3 as x but you mistakenly took 0 instead of -10. It's wrong what you did. We will take the point (3,-10). Why did you take at x=3?

 

[thementor]

For finding the constant c when differentiating, you did take 3 as x but you mistakenly took 0 instead of -10. It's wrong what you did. We will take the point (3,-10). Why did you take at x=3?

HAHAHAHAHAHAHA! lol It was a double derivative. When you integrate you get the first derivative. For max and min points you need to equate it to 0
You get max and min at dy/dx = 0
If you integrate d^2y/dx^2 then you get dy/dx
LOL It was not a mistake dude.
Seriously? Man

The question had the second derivative. If you integrate it, then you get the first derivative. You equate the first derivative to 0 to get turning points