tanα=2,π<α<(3/2)π,则sinα为( ) A.(√5)/5 B.tanα=2,π<α<(3/2)π,则sinα为( )A.(√5)/5 B.(2√5)/5 C.-(√5)/5D.-(2√5)/5

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tanα=2,π<α<(3/2)π,则sinα为( ) A.(√5)/5 B.tanα=2,π<α<(3/2)π,则sinα为( )A.(√5)/5 B.(2√5)/5 C.-(√5)/5D.-(2√5)/5
tanα=2,π<α<(3/2)π,则sinα为( ) A.(√5)/5 B.
tanα=2,π<α<(3/2)π,则sinα为( )
A.(√5)/5 B.(2√5)/5 C.-(√5)/5
D.-(2√5)/5

tanα=2,π<α<(3/2)π,则sinα为( ) A.(√5)/5 B.tanα=2,π<α<(3/2)π,则sinα为( )A.(√5)/5 B.(2√5)/5 C.-(√5)/5D.-(2√5)/5
c………………………………………………