题目信息
In the xy-plane, point (r, s) lies on a circle with center at the origin. What is the value of $${r}^{2}+{s}^{2}$$?
(1)The circle has radius 2.
(2)The point $$(\sqrt 2$$, $$-\sqrt2)$$ lies on the circle.
(1)The circle has radius 2.
(2)The point $$(\sqrt 2$$, $$-\sqrt2)$$ lies on the circle.
A:Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B:Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C:BOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D:EACH statement ALONE is sufficient.
E:Statements (1) and (2) TOGETHER are NOT sufficient.
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正确答案：
D:EACH statement ALONE is sufficient.
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