已知双曲线C的方程为x
2-
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=1,点A(m,2m)和点B(n,-2n)(其中m和n均为正数)是双曲线C的两条渐近线上的两个动点,双曲线C上的点P满足
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=λ•
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(其中λ∈[
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,3]).
(1)用λ的解析式表示mn;
(2)求△AOB(O为坐标原点)面积的取值范围.
考点分析:
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