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I was wondering if anyone could help me out here, its from the RUse 2005 Extenion 1 paper. q5 I think. Prove by induction that, for any positive integer n, the product (n+1)(n+2)..(n+n) is always a multiple of 2^n but never a multiple of 2^(n+1) I can show the first part, the divisiblity...

Does anyone know where i can get answers to the HSC specimen paper of 2001? I have searched up these boards, and found nothing. Thanks for any hlep

Hey does anyone have some ruse or other selective schools. ie nghs, nbhs, or even some private schools ie grammar 2004 assessment tastk 1s or 2s or past papers in 2u, 3u, or 4u. itd be great to study for in teh hols. thnx in advanced