已知sinα=,α∈(0,π),则tanα的值等于(    )A.              B.

已知sinα=,α∈(0,π),则tanα的值等于(    )

A.              B.                C.±                D.±

答案

解析:

由sinα=,α∈(0,π),

∴cosα=±,∴tanα=±.

答案:

D

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