Program matematika / Mathematics program:
Program (Bahasa Indonesia)
Program (English)
Sumber asli / Authoritative original
Jawaban
J.72.1
.
Ada
\(r\gt0\)
dengan
\(B(x,r)\cap C=\emptyset\text{;}\)
akibatnya
\(d(x,C)\geq r\gt0\text{.}\)
in-context