Maths, Addmaths and Statistics: Post your doubts here!

[peacce]

Is 2 the answer of first part?

no its -1/3 man

 

[funky brat]

Tu distinction kai spellings seekh le pehlay, baad mein baat karein.

Nahi atey. Tu sikha dey. No english I knowzz. :'(

 

[funky brat]

guys what should i do for the rough working?? where should i do that?

guys what should i do for the rough working?? where should i do that?

On the table.

 

[era30amy]

Nahi atey. Tu sikha dey. No english I knowzz. :'(

Ab paper ho gaya, koi faida nahi angrezi seekhnay ka

 

[asadalam]

I don't get that tip. :c

Lemme explain.

Suppose we have to shade (P U R)' n Q.

So we will line all the region except P U R since its a complement.Make lines tilted in one direction
Then we will shade Q,in the other direction.

The area in which the 2 lines overlap is the one we have to shade ,understand?

 

[funky brat]

Lemme explain.

Suppose we have to shade (P U R)' n Q.

So we will line all the region except P U R since its a complement.Make lines tilted in one direction
Then we will shade Q,in the other direction.

The area in which the 2 lines overlap is the one we have to shade ,understand?View attachment 43856

I never knew that. :O
We do all shadings this way?

 

[era30amy]

http://papers.xtremepapers.com/CIE/...Calculator Version) (4024)/4024_w10_qp_12.pdf

Q-21
asadalam, could you solve it? D:

 

[peacce]

On the table.

ahahhahaha

 

[era30amy]

Parallelogram ki 2 lines of symmetry nae hoti? In a pp, 0 tha answer.

Order of rotational symmetry = 2
Lines of symmetry = 0

Jeez.

 

[era30amy]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_w10_qp_12.pdf

Q-21
asadalam, could you solve it? D:

funky brat, tu hi kar de? ._.

 

[funky brat]

Order of rotational symmetry = 2
Lines of symmetry = 0

Jeez.

Oh yes, no one underestimates my friendzz, she gets distinctionzz. :'3

 

[era30amy]

B=53.35
C=180-61.5-53.35

Sorry. ._. Not 21. Q:11
My head's spinning.

 

[asadalam]

I never knew that. :O
We do all shadings this way?

Its just an easy method,a tip given by my sir.

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_w10_qp_12.pdf

Q-21
asadalam, could you solve it? D:

Sure
a)B is nearest to 1/10 so we will divide it by 2 and get a bound limit of 0.05 plus/minus.We need lower bound so just minus 0.05 from 53.4 and get 53.35

b)To get upper bound for angle c we will need lower bounds for A n B(since sum is always 180 and if other 2 are smaller C will be bigger).Lower bound for A is 61.5(62-0.5) and for B is 53.35.We will get 114.85.Subtract that from 180 to get 65.15 which is the answer.

 

[peacce]

Order of rotational symmetry = 2
Lines of symmetry = 0

Jeez.

line of symmetry should be =1 no?

 

[asadalam]

Sorry. ._. Not 21. Q:11
My head's spinning.

Yar pehle btana tha......

 

[funky brat]

funky brat, tu hi kar de? ._.

You tagged him, you think I can't do. *cries cries*

 

[era30amy]

Oh yes, no one underestimates my friendzz, she gets distinctionzz. :'3

u r laky too bee moi fraand.

Aik bachay ki query solve kar kai mein shokhi ho gayi hoon. xD #ChotiChotiKhushiyan

 

[peacce]

http://papers.xtremepapers.com/CIE/...Calculator Version) (4024)/4024_s13_qp_12.pdf
Q.4 part a ???????

 

[era30amy]

Yar pehle btana tha......

5 minutes hi late huwi hoon. Koi masla nahi. :c

 

[asadalam]

Then how do you explain this?

Symmetry isnt just about equal areas,its about them overlapping perfectly.If we folded a paper that shape in that direction of symmetry it would not fit perfectly over each other,try it.Thats why it doesnt have a line of symmetry.