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f:R-->R, f(x)=x-6. Calculati P=f(0)*f(1)*f(2)*...*f(99)*f(100)

Răspuns :

Aplicam progresia aritmetica f(x)=x-6 ==
f(0)= -6 (a1)
f(1)= -5
f(2)= -4 
.............
f(99)= 83 (aN)
(aN+a1)n / 2 calculezi, unde n= numarul lor adica 101