Maths, Addmaths and Statistics: Post your doubts here!

[Asad.Babur]

hahahhahahha

LOLX! What did you got, anyway?

 

[Asad.Babur]

Does anyone with 991 es PLUS knows how to factorise Algebraic Expressions, how to perform Prime Factorizations, and Expansion of Algebraic Expression using it! ?
A star, @Magnuis, ***amd***, Awesome12, asadalam

 

[Asad.Babur]

Am I an Idiot or this question is Insane! ?

If X^2 + Y^2 = 14
XY= 5

Whats
(x+y)^2

Ans. is 24............... And I dont know howcome

 

[Asad.Babur]

Am I an Idiot or this question is Insane! ?

If X^2 + Y^2 = 14
XY= 5

Whats
(x+y)^2

Ans. is 24............... And I dont know howcome

Awesome12

 

[Awesome12]

Awesome12

What is XY?

 

[Asad.Babur]

What is XY?

X Multiplied by y = 5

X^2 + Y^2 = 14

Find (X+Y)^2

Which is 24 in answers

 

[FLRNAB]

Am I an Idiot or this question is Insane! ?

If X^2 + Y^2 = 14
XY= 5

Whats
(x+y)^2

Ans. is 24............... And I dont know howcome

What paper?

 

[Asad.Babur]

NO PAPER, Book 2 Chap. 3 Excersie 3c Q. 7 or 8

 

[FLRNAB]

NO PAPER, Book 2 Chap. 3 Excersie 3c Q. 7 or 8

XY = 5,
X^2 + Y^2 = 14

Expand this (X +Y)(X + Y) which gives us X^2 + 2XY + Y^2.

Rearrange:
X^2 + Y^2 + 2XY

Substitute values:
14 + 2(5) = 24

 

[Asad.Babur]

XY = 5,
X^2 + Y^2 = 14

Expand this (X +Y)(X + Y) which gives us X^2 + 2XY + Y^2.

Rearrange:
X^2 + Y^2 + 2XY

Substitute values:
14 + 2(5) = 24

LIFE SAVER THANKS MAN

 

[FLRNAB]

LIFE SAVER THANKS MAN

Why are you doing it from the book? Do the past papers it will save you much headache.

 

[Asad.Babur]

Why are you doing it from the book? Do the past papers it will save you much headache.

lolx !Will try next TIme! :0

 

[AbbbbY]

X Multiplied by y = 5

X^2 + Y^2 = 14

Find (X+Y)^2

Which is 24 in answers

Questions like these don't show up in O Level Math. They're more of a SAT Reasoning thing.

 

[Asad.Babur]

Questions like these don't show up in O Level Math. They're more of a SAT Reasoning thing.

Very Funnt

This is one I found in Book!

Thanks FLRNAB ............

 

[FLRNAB]

Very Funnt

This is one I found in Book!

Thanks FLRNAB ............

Your welcome

 

[AbbbbY]

Very Funnt

This is one I found in Book!

Thanks FLRNAB ............

Funny? I'm not joking. Questions like this don't show up in exam. They're tested extensively on the SAT circuit though.
And book? Idk. Never used a book

 

[Asad.Babur]

Funny? I'm not joking. Questions like this don't show up in exam. They're tested extensively on the SAT circuit though.
And book? Idk. Never used a book

LOLX! Never////////////??

How do you study anyway/?

 

[asadalam]

Q4.b)how to prove congruency?
Q10.b)How to show SR with that formula?I know we will use sine rule but it doesn't match up

 

[asadalam]

Area of one circle = pir^2
Area of one sector =piR^2 /5

pir^2 = piR^2 /5 - (pir^2)

R^2 = 10r^2

10:1

I couldn't understand that.Isn't the big R for the big circle not the sector?A written explanation would be better

 

[asadalam]

Q2,c{