You are Here: Home >< Maths

# Core 4 Soloman Paper D watch

1. Hi.
For question 1 what integration method should i be using.
https://5c59854d0ccd29d489c9e5e689a8...20C4%20OCR.pdf
thanks
2. (Original post by SamuelN98)
Hi.
For question 1 what integration method should i be using.
https://5c59854d0ccd29d489c9e5e689a8...20C4%20OCR.pdf
thanks
No set one, there's a variety of methods. You could expand out and say by inspection or by inspection or note that , or use the substitution on the latter half of the integral, or , etc...
3. (Original post by SamuelN98)
Hi.
For question 1 what integration method should i be using.
https://5c59854d0ccd29d489c9e5e689a8...20C4%20OCR.pdf
thanks
Expand and use the identity:

4. (Original post by Zacken)
No set one, there's a variety of methods. You could expand out and say by inspection or by inspection or note that , or use the substitution on the latter half of the integral, or , etc...
Sorry , could how explain how you got (cos^2)(x)/2 ,is that the reverse chain rule?
5. (Original post by SamuelN98)
Sorry , could how explain how you got (cos^2)(x)/2 ,is that the reverse chain rule?
Yeah.
6. (Original post by Zacken)
Yeah.
Hey.
Would you be able to help me understand what is meant in question 8.
I cant visualize what is mean by point c lies on l2 such that AC is perpendicular to BC.
7. (Original post by SamuelN98)
Hey.
Would you be able to help me understand what is meant in question 8.
I cant visualize what is mean by point c lies on l2 such that AC is perpendicular to BC.
Crap drawing:

Green is line 1, blue is line 2.
8. Zacken Is it possible to use integration by parts with this?
9. (Original post by Zacken)
Crap drawing:

Green is line 1, blue is line 2.
Thanks.
10. (Original post by Don Pedro K.)
Zacken Is it possible to use integration by parts with this?
Yep, that's definitely another method.
11. (Original post by Zacken)
Yep, that's definitely another method.
Ah okay thank you!

Oh yeah this is a bit random but, assuming that you did (which I think you did), how you find last year's C3 paper? I've heard complaints about it but was it really that bad?
12. (Original post by Don Pedro K.)
Ah okay thank you!

Oh yeah this is a bit random but, assuming that you did (which I think you did), how you find last year's C3 paper? I've heard complaints about it but was it really that bad?
No worries.

Seemed fairly standard to me.
13. (Original post by Zacken)
No worries.

Seemed fairly standard to me.
Would you say that the papers generally get harder (even if only a bit) from the earlier ones to the later ones?
14. (Original post by Don Pedro K.)
Would you say that the papers generally get harder (even if only a bit) from the earlier ones to the later ones?
Erm, I wouldn't really say so, no. They seem to fluctuate in difficulty, some of the recent ones area easier, most are standard, some are harder.
15. (Original post by Zacken)
Erm, I wouldn't really say so, no. They seem to fluctuate in difficulty, some of the recent ones area easier, most are standard, some are harder.
Ah okay awesome, thanks Zacken! Best of luck with things.
16. (Original post by Don Pedro K.)
Ah okay awesome, thanks Zacken! Best of luck with things.
No problem, good luck to you too!

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: April 12, 2016
Today on TSR

### Tuition fees under review

Would you pay less for a humanities degree?

### Buying condoms for the first time - help!

Discussions on TSR

• Latest
Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE