Syarat kontinu
f(a)=ada terdefinisi
lim x→a f(x)=f(a)
lim x→a f(x)=ada
.
Jadi
f(1)=1²+2=1+2=3(ada)
lim x→1 x²+2=1²+2=3(ada)
lim x→1 x²+2=f(1)
Jadi f(x) kontinu pada x=1
Semoga bermanfaat
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Penyelesaian
Syarat kontinu
f(a)=ada terdefinisi
lim x→a f(x)=f(a)
lim x→a f(x)=ada
.
Jadi
f(1)=1²+2=1+2=3(ada)
.
lim x→1 x²+2=1²+2=3(ada)
.
lim x→1 x²+2=f(1)
Jadi f(x) kontinu pada x=1
Semoga bermanfaat