Maths, Addmaths and Statistics: Post your doubts here!

[farhan141]

What was answer to its previous part?

 

[Unknown :)]

It's a trapezium.

 

[fatima0000]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s11_qp_21.pdf
Q 2 (c)(i)(b)

is there anybody who can ans my question.. ????

 

[AbbbbY]

is there anybody who can ans my question.. ????

Since y=p is a straight line, and a horizontal one,
Y co-ordinate has to be P.

X co ordinate can be found by substituting y=p into the equation.
hence, 4p=3x+15
x = (4p-15)/3
y = p

Is this correct?

 

[fatima0000]

Since y=p is a straight line, and a horizontal one,
Y co-ordinate has to be P.

X co ordinate can be found by substituting y=p into the equation.
hence, 4p=3x+15
x = (4p-15)/3
y = p

Is this correct?

thanks.. i guess its correct

 

[TheStallion-Reborn]

If learning is difficult for you, just simply derive them.
Draw a graph and mark (1,0) on x-axis.
Then mark (0,1) on y-axis.
If, for example, you want a matrix transformation for reflection in x-axis, so (1,0) remains same as it is already on the x-axis and (0,1) becomes (0,-1) after reflection.
So the matrix transformation becoms [1/0 0/-1].
I wonder if you can understand like this but that's all I could explain here.
Solve past papers/

bro, id e so so so obliged if u could xplain tht matrix thng in paint and upload a screenshot would b quite a bit of hassle for u but please....

 

[AbbbbY]

How ?
Kite can shape itself twice in 360 degrees !

I'm pretty sure you're confusing a Kite with a Diamond.

I want someone to explain me rotational symmetry and other things related to symmetry. Thanks in Advance.

http://www.mediafire.com/view/?e49zwp9nq86c6qy
The very last page of this document.

(Order 1 = Order 0 and vice versa)

 

[iamLbert]

I'm pretty sure you're confusing a Kite with a Diamond.


http://www.mediafire.com/view/?e49zwp9nq86c6qy
The very last page of this document.

(Order 1 = Order 0 and vice versa)

Because kite two side short and two side long, while diamond all length same, that's why the answer is kite....

 

[Cryptids]

Because kite two side short and two side long, while diamond all length same, that's why the answer is kite....

Ohhhhhh order 0 means order 1 !
LOL I never knew that thanks man !

 

[AbbbbY]

Ohhhhhh order 0 means order 1 !
LOL I never knew that thanks man !

I didn't either, until after my exam. This Order 0 Order 1 thing cost me the only mark I needed for a WD

 

[Kinza Zimri]

O Levels or A Levels?
EDIT: Just read the title so O Levels only. Removed the infinity term formulae.

A+(n-1)d

A= First Term
n= Nth term
d= Common difference.

This is only true for Arithmetic Progressions.

I don't think Geometric Progressions were a part of O Level Math. I'll check and get back to you on that.

Nonetheless, for G.P
A(1-R^n)/(1-r)

A= First term
R= Ratio b/w them
N= Nth term/Number of terms.

Thanks! I'll try some questions

 

[Suchal Riaz]

Wtfis this?

 

[Saad Mughal]

Wtfis this?View attachment 27419

The first method's wrong. Why you do division like this?

 

[asma tareen]

Wtfis this?View attachment 27419

it always confuses me

 

[Kinza Zimri]

The first method's wrong. Why you do division like this?

why is it wrong??? i dont understand this thing, why put an extra zero?

 

[Cryptids]

Wtfis this?View attachment 27419

HHAHAHAHAHAHAH who taught you dividing like this ? LOL

 

[Cryptids]

why is it wrong??? i dont understand this thing, why put an extra zero?

Just some common sense !
1.5x2 is never 21 ! LOL

 

[Kinza Zimri]

Just some common sense !
1.5x2 is never 21 ! LOL

yes but when we are dividing like that, 1 will not be divisible so a decimal will be placed but how will we know that an extra zero has to be written down before putting the decimal?

 

[Saad Mughal]

why is it wrong??? i dont understand this thing, why put an extra zero?

To complete the division or simplify it until it no longer divides.

 

[Cryptids]

yes but when we are dividing like that, 1 will not be divisible so a decimal will be placed but how will we know that an extra zero has to be written down before putting the decimal?

Try some complex figures like 753/4 and this method will be good enough !
These simple calculations can be verified so you don't need to worry about them !