當x>1時,x+/x>2, 所以當x=1時取得最小值2
所有跟帖:
• 謝謝!題目應該是 x 為正實數。 -goodluck8888- ♂ (68 bytes) () 10/29/2023 postreply 19:10:12
• 謝謝!題目應該是 x 為正實數。 -goodluck8888- ♂ (68 bytes) () 10/29/2023 postreply 19:10:12
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