13 If X, Y, and Z are positive integers, is Y>X? (1) Y^2=XZ (2) Z-X>0
l Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient l Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient l BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. l EACH statement ALONE is sufficient l Statements (1) and (2) TOGETHER are NOT sufficient Answer C
请问各位,怎么由两个条件得出Y>X啊 | 
