any vectors help or tips on core mathematics 4 please?

Qs r so weird lol

many thanks

c4 is a bitch, trying to revise it and I keep struggling on every Vector question. I also haven't got the hang of some Integration questions.

Frustrating.

Reply 2

A for Andromeda

8

*subscribes*

(Not very helpful, sorry, but we didn't do vectors in class, as we ran out of time and I haven't started self-learning yet, because I want to get my other exams out of the way first :colondollar:

)

Reply 3

Sheldon

7

In my opinion vectors is one of those things you either get or you don't.
I find vectors generally quite nice so if you have any specific questions, ask away.

Reply 4

?!master?!mini?!

16

Draw diagrams always!!!!!!

Apart from that I don't know what to say.

Reply 5

kingsmod1

OP

Original post by Sheldon

In my opinion vectors is one of those things you either get or you don't.
I find vectors generally quite nice so if you have any specific questions, ask away.

well its just the harder 5, 6 markers.. dont kno wer to start

i dont wanna say specific because then theres others lol

Reply 6

kingsmod1

OP

can some1 please explain to me how u do Q3 on jan 2006 paper, too confsuing!

Reply 7

Sheldon

7

Original post by kingsmod1

can some1 please explain to me how u do Q3 on jan 2006 paper, too confsuing!

AQA?

Reply 8

kingsmod1

OP

Original post by Sheldon

AQA?

edexcel

Reply 9

tajmahal

2

Original post by kingsmod1

can some1 please explain to me how u do Q3 on jan 2006 paper, too confsuing!

i get a to equal 10, not 18..this is so damn weird...
help me out if ur able to find some decent method.. :smile:

Reply 10

physics1

5

Original post by kingsmod1

can some1 please explain to me how u do Q3 on jan 2006 paper, too confsuing!

is that the substitution question?

Reply 11

kingsmod1

OP

Original post by physics1

is that the substitution question?

well yeah lol

Reply 12

limetang

19

Original post by kingsmod1

well yeah lol

You firstly need to differentiate both sides of the U^2 term with respect to x (which involves implicitly differentiating u^2)

Reply 13

Nadine2010

Original post by kingsmod1

can some1 please explain to me how u do Q3 on jan 2006 paper, too confsuing!

i just rearranged to get x, then differentiated that rearranged version to get 'u' which cancels out with the bottom u. then you can just turn the 3x into u's- 3(1/2(u^2+1) , cancel out and integrate it.. and sub in the new limits of 3 and 1.. hope that makes sense :smile:

Reply 14

kingsmod1

OP

Original post by Nadine2010

i just rearranged to get x, then differentiated that rearranged version to get 'u' which cancels out with the bottom u. then you can just turn the 3x into u's- 3(1/2(u^2+1) , cancel out and integrate it.. and sub in the new limits of 3 and 1.. hope that makes sense :smile:

thank u

Reply 15

shining-starh

*subscribes*

any vectors help or tips on core mathematics 4 please?

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