Q 2608078808.     Choose the correct option and justify your choice:
` \frac { 2\tan { { 30 }^{ \circ } } }{ 1+{ \tan }^{ 2 }{ 30 }^{ \circ } } =`

NCERT
A

` \sin { { 60 }^{ \circ } }`

B

` \cos { { 60 }^{ \circ } }`

C

` \tan { { 60 }^{ \circ } }`

D

`\sin { { 30 }^{ \circ } }`

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