Mathematics: Post your doubts here!

[Shada Mohammed]

Nov 2005 q 8 and 11 doubt

 

[Phoenix Blood]

Nov 2005 q 8 and 11 doubt

Paper 2 or 4?

But what if the question asked to provide the rule used in terms of n

I don't think they will ask it in the IG, but if they do, they're gonna have some more data given.
IDK ._. Did the question ask you to find the nth term? Where's it from?

 

[idklol]

But what if the question asked to provide the rule used in terms of n

Me thinks it is:

(3+n)! / 6

1 * 4 = 4
1 * 4 * 5 = 20
1 * 4* 5 * 6 = 120
1 * 4* 5 * 6 * 7 = 840
1 * 4* 5 * 6 * 7 * 8 = 6720

 

[Phoenix Blood]

Me thinks it is:

(3+n)! / 6

1 * 4 = 4
1 * 4 * 5 = 20
1 * 4* 5 * 6 = 120
1 * 4* 5 * 6 * 7 = 840
1 * 4* 5 * 6 * 7 * 8 = 6720

That exclamation mark, what is it?

 

[Shada Mohammed]

P

Paper 2 or 4?

I don't think they will ask it in the IG, but if they do, they're gonna have some more data given.
IDK ._. Did the question ask you to find the nth term? Where's it from?

Paper 2

 

[Shada Mohammed]

What is meant by area of cross section and surface area? And is the circumference of the circle should be considered as the perimeter of the circle? What is meant by a prism? I would anyone to give me sites about mensuration or any formula sheets

 

[Phoenix Blood]

What is meant by area of cross section and surface area? And is the circumference of the circle should be considered as the perimeter of the circle? What is meant by a prism? I would anyone to give me sites about mensuration or any formula sheets

Cross-section : the area of the side, that, when u cut, u get equal sized and shaped such similar shapes.

 

[Phoenix Blood]

What is meant by area of cross section and surface area? And is the circumference of the circle should be considered as the perimeter of the circle? What is meant by a prism? I would anyone to give me sites about mensuration or any formula sheets

Surface area is d entire outward surface area of all the shapes that make up a 3D object.

 

[Phoenix Blood]

What is meant by area of cross section and surface area? And is the circumference of the circle should be considered as the perimeter of the circle? What is meant by a prism? I would anyone to give me sites about mensuration or any formula sheets

The circumference of the circle can be considered as the perimeter of the circle.

 

[MarcoReus]

What is meant by area of cross section and surface area? And is the circumference of the circle should be considered as the perimeter of the circle? What is meant by a prism? I would anyone to give me sites about mensuration or any formula sheets

Here's one I have since the CIEs in May.

 

[Phoenix Blood]

What is meant by area of cross section and surface area? And is the circumference of the circle should be considered as the perimeter of the circle? What is meant by a prism? I would anyone to give me sites about mensuration or any formula sheets

A prism is a solid object with two identical ends and flat sides:

• The sides are parallelograms (4-sided shape with opposites sides parallel)
• The cross section is the same all along its length

Eg,

These aren't prisms:

 

[Shada Mohammed]

Phoneix Blood Thanks a lot

 

[Phoenix Blood]

Phoneix Blood Thanks a lot

No probz.

 

[Shada Mohammed]

Can you explain q 8 abd 11 p2 nov 05

 

[idklol]

That exclamation mark, what is it?

Times the INTEGER by all integers before it.

Example:

5! = 5*4*3*2*1 (although *1 is unnecessary as anything*1=the same thing)
I divided by 6 because it required 4*5*6... not 1*2*3 (or 2*3). So naturally you remove 6.

 

[Phoenix Blood]

Times the INTEGER by all integers before it.

Example:

5! = 5*4*3*2*1 (although *1 is unnecessary as anything*1=the same thing)
I divided by 6 because it required 4*5*6... not 1*2*3 (or 2*3). So naturally you remove 6.

Um... was this in the IGCSE?

 

[Phoenix Blood]

Can you explain q 8 abd 11 p2 nov 05

Links?

 

[$hadow]

Um... was this in the IGCSE?

Rarely seen in General Maths but for Additional Maths, yes it is in IGCSE

 

[Shada Mohammed]

Links?

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/ it's w05 q08 I want to know why it's 1/2a-1/2c and not 1/2aplus 1/2c and need explanation for 11

 

[Phoenix Blood]

Rarely seen in General Maths but for Additional Maths, yes it is in IGCSE

K... i hadn't taken Additional