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IGCSE MATHS Doubts

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Adzel:

--- Quote from: thenewkid™ on May 11, 2010, 09:15:32 am ---here u go
Thanks

--- End quote ---

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

Adzel:
Locus;

thenewkid™:
Thanks a lot

Adzel:

--- Quote from: Adzel on May 11, 2010, 09:14:07 am ---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.

--- End quote ---

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



 

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