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These are questions asked by yangtheary

A  group of boy and girl students  compete to eat pizza at super market .One pizza was cut 12 pieces one boy student  could to eat 6 or 7 pieces and one girl student could to eat 2 or 3 pieces .

If they put  4 pizzas they will not see enough  if  they put 5 pizzas will over .

How many boy and girl students who compete ?

Solve the equation sinx=1.5

Find the polynomial y=f(x) such that f(-6)=2400,f(-4)=432,f(-3)=120,f(-2)=16,f(-1)=0,f(0)=0,f(1)=-8,f(2)=0

If (abc‾) and (abcabcabc...abc‾)Ξ0(mod91).Find all non-negative integers (a,b,c)?

Let a sequence( an  ) defined by an=1,3,6,12,33,51,...and n=1,2,3,.... Find formula an?

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