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题库 / Prep2007E2-DS-35
What is the value of xy ?
(1) y = x + 1
(2) y = x2 + 1
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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x有可能等于0
value of xy is 2 or 0 based on (1) and (2)---> why this is not giving xy value???
X=0或1，而不是只等于0（忽略了x=1的可能性；下次应排除其他可能性（验证x的唯一性）后再做选择）
x=0 or x=1 were both the solutions to this question.
x=0 or x=1 were both the solutions to this question.
x=0/1