Объяснение:
1) f(0) = 1÷0.5
f(0) = 2
2)f(0)=0,5^2-2×0+2
f(0) = 1/2^2-0+2
f(0) = 1/4 +2
f(0) = 9/4
1) 2
2)9/4
