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4x^2+9y^2=36 即x^2/9+y^2/4=1 令x=3cos k, y=2sin k
△面積為(1/2)A，其中A為
│2...4...3cos k....2│
│-4..0...2sin k....-4│
=│4sin k - 12cos k +16│
=√160 sin(k-θ)+16
=4√10 sin(k-θ)+16
所以△面積=(1/2)A=2√10 sin(k-θ)+8

所以最大值為 8+2√10 最小值為 8-2√10

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【林慧娟／綜合報導】「足球尤物」亞曼達拜恩（Amanda Bynes）最近言行瘋癲，上月底被控從紐約大樓扔出大麻菸斗，遭警方以危害公眾安全、持有大麻等罪名逮捕。27歲的她最近又自爆將「人造D奶」移除：「它們令我感到不舒服，我寧可將它們移除。」 她的友人告訴美國Radar Online新聞網站：「亞曼達的胸部裝了引流管，過程很痛，她現在感覺好多了。」她已恢復原本的A罩杯平板身材，還說「我的胸部少了填充物後，看起來棒極了」。 她除了「拆彈」外，還在微網誌「推特」預告周末將動手術整鼻，她對整形手術上癮，藉此增強自信，脫序行為令人擔憂。

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知識問題|

發問者：	jud****** ( 初學者 5 級)
發問時間：	2013-06-22 13:53:08 ( 還有 9 天發問到期 )
解答贈點：	20 ( 共有 0 人贊助 )
回答：	0 意見： 0

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