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Hanoi Open Mathematics Competition
2012 Hanoi Open Mathematics Competitions
1
Q1 - Hanoi Open Mathematical Olympiad 2012 - Junior Section
Q1 - Hanoi Open Mathematical Olympiad 2012 - Junior Section
Source:
June 10, 2012
Problem Statement
Q1. Assum that
a
−
b
=
−
(
a
−
b
)
.
a-b=-(a-b).
a
−
b
=
−
(
a
−
b
)
.
Then:
(
A
)
a
=
b
;
(
B
)
a
<
b
;
(
C
)
a
>
b
(
D
)
It is impossible to compare those of a and b.
(A) \; a=b; \qquad (B) \; a<b; \qquad (C) \; a>b \qquad (D) \; \text{ It is impossible to compare those of a and b.}
(
A
)
a
=
b
;
(
B
)
a
<
b
;
(
C
)
a
>
b
(
D
)
It is impossible to compare those of a and b.
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