双曲线5y2-4x2=-20的实轴长为___,虚轴长为_,离心率为_

双曲线5y²-4x²=-20的实轴长为_____________,虚轴长为_____________,离心率为_____________.

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2 4

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双曲线5y2-4x2=-20的实轴长为_____________,虚轴长为_____________,离心率为___

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双曲线5y2-4x2=-20的实轴长为___,虚轴长为_,离心率为_