设f1f2是双曲线c:x^2/a^2-y^2/b^2=1的两焦点,p是c上一点,若绝对值pf1+绝对值pf2=6a.且三角形pf1f2的最小内角为30º,则离心率?求详解,甚感激!
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![设f1f2是双曲线c:x^2/a^2-y^2/b^2=1的两焦点,p是c上一点,若绝对值pf1+绝对值pf2=6a.且三角形pf1f2的最小内角为30º,则离心率?求详解,甚感激!](/uploads/image/z/2586830-14-0.jpg?t=%E8%AE%BEf1f2%E6%98%AF%E5%8F%8C%E6%9B%B2%E7%BA%BFc%EF%BC%9Ax%5E2%2Fa%5E2-y%5E2%2Fb%5E2%3D1%E7%9A%84%E4%B8%A4%E7%84%A6%E7%82%B9%2Cp%E6%98%AFc%E4%B8%8A%E4%B8%80%E7%82%B9%2C%E8%8B%A5%E7%BB%9D%E5%AF%B9%E5%80%BCpf1%2B%E7%BB%9D%E5%AF%B9%E5%80%BCpf2%3D6a.%E4%B8%94%E4%B8%89%E8%A7%92%E5%BD%A2pf1f2%E7%9A%84%E6%9C%80%E5%B0%8F%E5%86%85%E8%A7%92%E4%B8%BA30%26%23186%3B%2C%E5%88%99%E7%A6%BB%E5%BF%83%E7%8E%87%3F%E6%B1%82%E8%AF%A6%E8%A7%A3%2C%E7%94%9A%E6%84%9F%E6%BF%80%21)
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