wyznacz zbior wartosci funkcji f(x)=
a>0 ⇒ ZW=<-q,∞)
q=-Δ/4a
Δ=5²-4*1*4
Δ=25-16
Δ=9
q=-9/(4*1)
q=-9/4
ZW=<9/4,∞)
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a>0 ⇒ ZW=<-q,∞)
q=-Δ/4a
Δ=5²-4*1*4
Δ=25-16
Δ=9
q=-9/(4*1)
q=-9/4
ZW=<9/4,∞)