Blogtrottr
Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 投票中
Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 投票中
幾題簡單的橢圓問題
May 11th 2013, 01:18

1.假設橢圓之長軸平行於x軸或y軸,且滿足下列條件,求其方程式:
(1)中心和原點重合,y軸為長軸,正焦弦長是2,二焦點距離2√ 2
(2)焦點為(-1,1),(7,1),長軸之二端點為(-2,1),(8,1)
(2)焦點為(-1,1),(7,1),長軸之二端點(-2,1),(8,1)
(3)長軸方程式x=5,短軸方程式y=1,短軸為長軸之3/5倍,且中心到焦點之距離為12
(4)中心為(1,2),二焦點間之距離為6,長軸長為8
(5)以中心為原點,軸為座標軸,通過(2,3),(-1,4)二點
(6)中心為(1,2),長軸平行於x軸,且長軸長為短軸長之3倍,且通過(4,3)
(7)若一橢圓的中心為(6,-3),軸平行座標軸,且通過二點(4,1),(3,-2),求此橢圓方程式
(8)過(3,2),且與x^2/9+y^2/4=1共焦點1.

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends: Thatcher's Tyrants - The Tanks, The Guns, The Christmas Cards.
You are receiving this email because you subscribed to this feed at blogtrottr.com.

If you no longer wish to receive these emails, you can unsubscribe from this feed, or manage all your subscriptions
arrow
arrow
    全站熱搜

    linevpn 發表在 痞客邦 留言(0) 人氣()

    E-mail轉寄