EDEXCEL MATHS GCSE LINEAR - [exam on monday] what formulas do we need to know?

Hi, I am doing EDEXCEL GCSE Linear Maths calculator exam on monday.. I know we get a formula sheet but not all formulas are provided on the formula sheet. What are ALL the other formulas we need to know that are NOT given to use on the formula sheet?

If someone could be kind enough to make a list of the formulas we need for the exam on monday, I would be very grateful! :smile:

Thanks

Reply 1

130ss

2

standard deviation. trig identies. trapezium rule...

Reply 2

Polski_sklep

isnt all we need to know of the formulae sheet thingie? :O

Reply 3

Princestia

OP

9

130ss

standard deviation. trig identies. trapezium rule...

thanks

But what is standard deviation and trig identities?

Is trig identities SOH CAH TOA?

thanks :smile:

Reply 4

130ss

2

Princestia

thanks

But what is standard deviation and trig identities?

Is trig identities SOH CAH TOA?

thanks :smile:

yess.
standard deviation is

Reply 5

username297163

17

you need to know how to work out angles using sine n cosine rule annd area of sectors and length of sectors annd the surface area of a cylinder....

Sine rule angle = SinA/a = SinB/b = SinC/c
Cosine rule angle = CosA = b^2 + c^2 - a^2 / 2bc
surface area of cylinder = 2 Pi R(radius) H(height) x 2 Pi R^2
Area of sector = angle/360 x Pi R^2
Length of Arc = angle/360 x 2 x Pi x R
Area of segment = Area of sector - Area of triangle

annnd thats about it i think

Reply 6

Princestia

OP

9

130ss

yess.
standard deviation is

^ That's standard deviation? I have never seen or heard of this topic :O
Are you sure it's in the specification for my exam?

Reply 7

Princestia

OP

9

Mr_Muffin_Man

you need to know how to work out angles using sine n cosine rule annd area of sectors and length of sectors annd the surface area of a cylinder....

Sine rule angle = SinA/a = SinB/b = SinC/c
Cosine rule angle = CosA = b^2 + c^2 - a^2 / 2bc
surface area of cylinder = 2 Pi R(radius) H(height) x 2 Pi R^2
Area of sector = angle/360 x Pi R^2
Length of Arc = angle/360 x 2 x Pi x R
Area of segment = Area of sector - Area of triangle

annnd thats about it i think

Thank you but I think they give us sine rule, surface area of cylinder and cosine rule on the formula sheet? Thanks for the rest thoughhh :smile:

Reply 8

Lucy_x

3

standard deviation is for statistics not calculator maths. it's all waht tha muffin man said =)

Reply 9

username297163

17

Princestia

Thank you but I think they give us sine rule, surface area of cylinder and cosine rule on the formula sheet? Thanks for the rest thoughhh :smile:

nahhh they give you area of cylinder and they give you the sine n cosine rule to work out the length of sides but not the size of angles but your welcome :smile:

Reply 10

ourlastmemory

15

130ss

yess.
standard deviation is

you're joking, i have never come across standard deviation in my life.
its not even in my textbook, are you thinking of the right syllabus? :s-smilie:

Reply 11

130ss

2

ourlastmemory

you're joking, i have never come across standard deviation in my life.
its not even in my textbook, are you thinking of the right syllabus? :s-smilie:

yes... its just a fancy name for a statistics problem..
do you know how to find mean?? this is just abit more advanced

Reply 12

username297163

17

i thought standard deviation was A level work?

Reply 13

BittersweetPoetry

I don't recall standard deviation being in calculator maths. If it is I better start revising it for monday. And here I was thinking I defeated it once and for all when I had to do it statistics in year 10 :frown:

Reply 14

Princestia

OP

9

okay, thanks, muffin man :smile:

Also, thanks everyone else for posting but I'm sure standard deviation is not something that will come up in my gcse calculator exam since I have never heard of it lol.. correct me if I'm wrong though.. lol thanks guys :smile:

Reply 15

ourlastmemory

15

130ss