IGCSE MATHS Doubts

[Adzel]

here u go
Thanks

ANS Q6:  x = sin^-1 0.86603
                = 60
               
                i.e. 180-60 = 120

[Adzel]

Locus;

[thenewkid™]

Thanks a lot

[Adzel]

http://www.xtremepapers.net/CIE/index.php?dir=Cambridge%20IGCSE/0580%20-%20Mathematics/&file=0580_s02_qp_2.pdf

Q11, Q14 (b), Q16 (c), Q17 (c)....Thanks in advance.

anyone?...

[Ghost Of Highbury]

11) T = 5/(v+1)
  
      (v+1)T = 5      

      v+1 = 5/t

      V = 5/T -1


14b) assume y= -2

   do the calculations, arrange them in order

q16c) f(x) = x^1/3

         y = x^1/3

         x = y^1/3

        x^3 = y

       f-1(x) = x^3

q17c) Inner circle = 2PIr

         outer circle = 2*pi*4r = 8PIr

total = 10PIr



 

[Adzel]

11) T = 5/(v+1)
   
      (v+1)T = 5

      v+1 = 5/t

      V = 5/T -1

I did that but the mark scheme says 5-T/T

[Vin]

I did that but the mark scheme says 5-T/T

Is it

5-T
----
  T
ur saying ..?

[Ghost Of Highbury]

I did that but the mark scheme says 5-T/T

same thing

=

[Ghost Of Highbury]

11) T = 5/(v+1)
  
      (v+1)T = 5      

      v+1 = 5/t

      V = 5/T -1


14b) assume y= -2

   do the calculations, arrange them in order

q16c) f(x) = x^1/3

         y = x^1/3

         x = y^1/3

        x^3 = y

       f-1(x) = x^3

q17c) Inner circle = 2PIr

         outer circle = 2*pi*4r = 8PIr

total = 10PIr



 

ok answered all, check the ms and let me know if any silly errors..

[Ghost Of Highbury]

Locus;

are u sure abt this?

[Vin]

ok answered all, check the ms and let me know if any silly errors..

yup all correct!!

[PeaceMaker]

Im so stressed about maths. Its the only subject im very worried about since its the only subject im weak at. I don't know what to do i just don't hope i resit it. <_______<

[Vin]

Keep ur cool and hope the papers easy .. even im not tht good at maths n im tryin to do the same !! ..

[princess12]

oct/nov 2008 p2 q6
 

[Ghost Of Highbury]

sin^-1 0.86603 = 60 degree.

180 - 60 = 120 degree.