Use Identities to Find the Indicated Value for Each Angle $\sin \theta = \frac { 2 \sqrt { 10 } } { 7 } , \tan \theta < 0 \quad$

Use identities to find the indicated value for each angle measure.
- $\sin \theta = \frac { 2 \sqrt { 10 } } { 7 } , \tan \theta < 0 \quad$ Find $\sin ( 2 \theta )$

A) $\frac { - 12 \sqrt { 10 } } { 49 }$

B) $\frac { 12 \sqrt { 10 } } { 49 }$

C) $- \frac { 31 } { 49 }$

D) $\frac { 31 } { 49 }$

Correct Answer:

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