Edexcel IAL Mathematics C34- 17th January, 2017

Scroll to see replies

Reply 40

Fasih178

Original post by palpol

Does anyone remember how much marks that time question you were discussing had?

The whole thing? 11 marks I reckon.

Reply 41

sabahshahed294

My paper went okay but 14 questions+parallelogram + cartesean equation were a surprise :s-smilie:

Reply 42

Fasih178

Original post by Stoke123

I'm going to do the Exam in June.

Any tips for me? :colondollar:

Practice loads. That's all there is to it really.

Reply 43

sabahshahed294

Original post by Hamzah249

Yeah I guess you are right, I couldn't figure out this question till the very end because part b specifically stated a "Second model" has equation etc etc so I tried to work on it with only what was given in part b.
Tried to rush through the question and I guess I got wrong lambda :/

Are you referring to the ice question? Couldn't finish that due to lack of time :s-smilie:

Reply 44

Hamzah249

Original post by sabahshahed294

My paper went okay but 14 questions+parallelogram + cartesean equation were a surprise :s-smilie:

Solution to cartesian was sec^2 = tan^2 + 1 identity, what did you do?

Reply 45

Hamzah249

Original post by sabahshahed294

Are you referring to the ice question? Couldn't finish that due to lack of time :s-smilie:

yeah
I got my integration in it so thats 3 marks, substituted t=3 and x=1.5 so thats another mark.

Reply 46

sabahshahed294

Original post by Hamzah249

Solution to cartesian was sec^2 = tan^2 + 1 identity, what did you do?

I didn't realise that we have to substitute it into the cartesean equation hence I left it. :frown:

Original post by Hamzah249

yeah
I got my integration in it so thats 3 marks, substituted t=3 and x=1.5 so thats another mark.

Oh damn. Bad luck for me. I was planning to do the integration sum but then I lacked time. I thought the paper had 12 questions hence I went a bit slow. Later I see 14 and then I rushed :/

Reply 47

Raynedrops

Does anyone know the answers to these questions?

- After you prove tan 3A = something. It asks to work out -30 < x < 30 for tan 3x = 11 tan x

- ∫ ¹²₀(x / (2x + 3)²) dx by substituting u = 2x + 3 to form 1/2 ln 3 = 2/9
What type of integration where you suppose to use?

- The question with the trapezium rule, what were the exact values of y?

- The question with y = x cos x

Reply 48

sabahshahed294

Original post by Stoke123

I'm going to do the Exam in June.

Any tips for me? :colondollar:

Practice

And use the videos for exam solutions. Especially for topics such as differentiation and integration as he explains them very well. :h:

Reply 49

sabahshahed294

Original post by Raynedrops

For the first one, you worked out tan 3x in the previous part so simply substitute what you worked out for tan 3x and then a cubic equation forms.
Second one: Integration by Substitution
Third one: I don't remember what were the values given but the values were coming in the form of pi.

Reply 50

Hamzah249

Original post by Raynedrops

-Trapezium rule 2nd value of y was 9piunderroot5/8 I dont remember the first value. (Not sure about this)

-12 to 0 integration. It was basic integration stuff once you substitute u you end up with u-3/u^2.

- tan3x=11tanx you can still figure it out, use tan3x = tan(2x+x)

Reply 51

Hamzah249

Original post by Raynedrops

Does anyone know the answers to these questions?

- After you prove tan 3A = something. It asks to work out -30 < x < 30 for tan 3x = 11 tan x

If memory serves right, I think it was x=0, 26.95, -26.95

Reply 52

wenogk

Original post by Hamzah249

If memory serves right, I think it was x=0, 26.95, -26.95

YAS

Reply 53

wenogk

Guys how much do you think will be the raw mark out of 125 for an A*?

Reply 54

Hamzah249

Original post by wenogk

Guys how much do you think will be the raw mark out of 125 for an A*?

Considering it was easy, 108 or above for a* BUT lots of people are complaining about how lengthy paper was so that might factor in. Though I hope I'm wrong and a* is way below that like 102.

Reply 55

wenogk

Original post by Hamzah249

Considering it was easy, 108 or above for a* BUT lots of people are complaining about how lengthy paper was so that might factor in. Though I hope I'm wrong and a* is way below that like 102.