Prelim 2016 Maths Help Thread (3 Viewers)

[eyeseeyou]

You're welcome.

Did you take my last sentence into account?

 

[InteGrand]

Did you take my last sentence into account?

For what purpose should I have taken it into account?

 

[eyeseeyou]

For what purpose should I have taken it into account?

SO I don't get mad next time you answer my "why" science questions, Also like I said this literally shows, you don't have a pure understanding into the sciences

 

[Nailgun]

AHAHAHHAHA
omg im actually crying

 

[Sien]

integrand, your patience is at a godly level, do you ever get pissed at eyeseeyou's questions haha

and eyeseeyou, do you even understand how to do inductions, he literally gave you the answer lol
are you sure you can handle 4u lol

 

[eyeseeyou]

integrand, your patience is at a godly level, do you ever get pissed at eyeseeyou's questions haha

and eyeseeyou, do you even understand how to do inductions, he literally gave you the answer lol
are you sure you can handle 4u lol

At times induction can piss me off especially the 3rd step

I really want to do 4U coz of the scaling

 

[eyeseeyou]

integrand, your patience is at a godly level, do you ever get pissed at eyeseeyou's questions haha

and eyeseeyou, do you even understand how to do inductions, he literally gave you the answer lol
are you sure you can handle 4u lol

Sien do you get pissed at my Q's?

Also why should you give a fck about me?

 

[eyeseeyou]

Some more maths Q's (circle geometry without the diagram)

1. ABCD is a cyclic quad. Angle ABCE is parallelogram. Prove CE=ED
2. Two circles O and C touch A. The smaller circle also touches the radius OA at P. The common tangent at A cuts the radius OD produced to F. Prove O,C and A are collinear
3. Prove tha a parralelogram which is a cylic must be a rectangle
4. A,B, C are 3 points on a circle and triangle ABC is acute angled. AD is drawn parrallel to BC&CD is drawn parrallel to BA. Prove D is not cyclic
5. C us any part on a cirle with a diameter AB. P&Q are points on minor arc AC&BC. Prove angle APC+ angle CQB=270 degrees

 

[eyeseeyou]

bad thing is Induction appears again in 4U (harder 3u topic)

 

[eyeseeyou]

So currently I have a mind blank right now. Need help with this question:
Find the inverse function of the following. Also state the domain and range of the inverse function:
Y= (x-2)/(x+2)
Also
sketch on one graph y=f(x)and y=f^(-1) (x):Make sure the diagrams are to scale
1.f(x)=-x^2,x≥0
2.f(x)=tan⁡(π/2),-π≤x≤π

 

[fifibum]

How would multiply cos 3 theta by cos theta? Double angles killing my life

 

[eyeseeyou]

cos(3theta)=cos(2theta+theta) then you use the cos rule blah blah ... you get the jist of things right?

 

[davidgoes4wce]

So currently I have a mind blank right now. Need help with this question:
Find the inverse function of the following. Also state the domain and range of the inverse function:
Y= (x-2)/(x+2)

Here is the graph below of the function and the inverse.

 

[Green Yoda]

Yeah I think I know ths jist of things now

Anyways thanks

BTW when you answer my "why" science questions (phys and chem) could you please not say "By inspection" because it really annoys me. This is like...showing you have no pure knowledge to phys/chem at all

ded..bruh
He has 10x more knowledge than 2 state rankers combined

 

[leehuan]

ded..bruh
He has 10x more knowledge than 2 state rankers combined

Will vouch for this gladly. Because without him I'd be so dead at uni.

 

[eyeseeyou]

ded..bruh
He has 10x more knowledge than 2 state rankers combined

Okay, he's an expert in maths and physics and I don't think chem so much

Also to me "by inspection" doesn't show any proper knowledge since I don't find reasoning "By inspection"

 

[eyeseeyou]

Will vouch for this gladly. Because without him I'd be so dead at uni.

That's why we all need to rep him

 

[davidgoes4wce]

What is integrand's qualifications? I'm guessing he has to have a PhD

 

[leehuan]

"You must spread reputation around before giving it to InteGrand again"

This is why I changed to -likes-

 

[leehuan]

What is integrand's qualifications? I'm guessing he has to have a PhD

Well, his identity is one of the biggest secrets ever on BoS.