hey all hope ur fine,

i have a homeworks really hard bcz i was absent for 2 weeks(i was sick)

so plz can u help me??

the lesson name: Recurrence

1) n being an entire naturel,proove that:

3^(2n)_ 2^(n) divisible by 7

2)5^(2n)_2^(n) divisible by 23

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proove one polynome p(x)=ax^2+bx that verifie,for all reel x's, p(x+1)_p(x)=x

etablissez by recurrence that p(n) entire east for all n E N

be the term continuation generale Sn=1+2+......+n, n_>1

hey sorry for my english iam learning math in french but this forum da best many thanks