Mathematics: Post your doubts here!

[Amy Bloom]

smzimran Wow you are great man! Thanks loads. But hey can u tell me how do you separate the variables? That's my big problem. Kinda Cross-multiplication?

 

[smzimran]

smzimran Wow you are great man! Thanks loads. But hey can u tell me how do you separate the variables? That's my big problem. Kinda Cross-multiplication?

Thats easy, just take all y terms to L.H.S
The trick is:
(1) If the other side has a common denominator,
take that denominator to the other side and it becomes numerator, then next take the numerator to the other side as well!

(2) If the other side doesnot have a common denominator, take LCM get a common denominator and do step (1)

 

[Amy Bloom]

Thats easy, just take all y terms to L.H.S
The trick is:
(1) If the other side has a common denominator,
take that denominator to the other side and it becomes numerator, then next take the numerator to the other side as well!

(2) If the other side doesnot have a common denominator, take LCM get a common denominator and do step (1)

Thanks a lot! I'll pray for you to get good grades. U really helped me.

 

[Amy Bloom]

Hello guys. I have a small query:

smzimran

 

[smzimran]

Hello guys. I have a small query:
View attachment 14342
smzimran

Yes, both answers are correct!
Just signs are switched, that is not a problem....

 

[Amy Bloom]

Yes, both answers are correct!
Just signs are switched, that is not a problem....

Sigh! Thanks buddy . BTW, your avatar is , well said!

 

[bamteck]

smzimran please help me for the above question

 

[Amy Bloom]

Hi, its me once again. can u just guide me how to solve the following please? smzimran

 

[Amy Bloom]

Would you mind helping me with these questions please ?View attachment 14323

Hey, can you tell me from which year is this questionnaire please?

 

[shanky631]

Amy Bloom. i hope it helps. this is solution to november 2003 paper 1

 

[parthrocks]

Hey, can you tell me from which year is this questionnaire please?

Its May/June 2012 AS level variant 11 i guess!!

 

[shanky631]

Hi, its me once again. can u just guide me how to solve the following please?

View attachment 14363

 

[parthrocks]

Hi, its me once again. can u just guide me how to solve the following please? smzimran
View attachment 14361

View attachment 14362

View attachment 14363

Hey Amy Bloom hiiii I have solved it,,,I hope you understood it....the first image is from where the sum starts!!AND THANKS ....

 

[smzimran]

Would you mind helping me with these questions please ?View attachment 14323

 

[Amy Bloom]

parthrocks thanks, for what? Yeah i understood, no worries. Thanks from me
shanky631 Hey, some attachments i can't view can u re-post them please?
THANKS GUYS

 

[Amy Bloom]

Amy Bloom. i hope it helps. this is solution to november 2003 paper 1
View attachment 14364

It really helped. ty.

 

[Amy Bloom]

Hi smzimran I have some doubts for p3. would u mind to help me? There are 3 questions.

 

[parthrocks]

Hi smzimran I have some doubts for p3. would u mind to help me? There are 3 questions.
View attachment 14396

Hey amy length of the chord and length of the arc is the same thing...which in question number 6 is given By PQ....and hey the formulae is
n/360 * 2pier
where n and 360 is in degrees and r is the radius.....
i hope u got it!!

 

[InnocentAngel]

Hey parthrocks I like the questions u’ve been asking. There’s always something I learn from them. They are not like the questions ive been working till now.
I could answer only part a. L Please others help us.
It is easier to convert radians into degrees to manipulate the values.
Sin (π/12)
= sin 15
= sin (45- 30)
= sin45 cos30 –cos45 sin30
=( 1/√2 X (√3)/2 ) – ( 1/√2 X ½ )
=( √3 – 1 ) / 2√2

Tan (π/12)
= tan( 45-30)
= (tan 45 – tan30) / (1 + tan45 tan30)
=(1 – 1/√3) / (1 + 1/√3)
Simplify and get
= (√3 -1 ) / (√3 +1 )

 

[smzimran]

bamteck: