Use the Fundamental Identities to Find the Value of the Trigonometric

question 215

Multiple Choice

Use the fundamental identities to find the value of the trigonometric function.
- $\sin \alpha$ , if $\cot \alpha = 3$ and $\cos \alpha < 0$

• A) \(- \frac { 3 \sqrt { 10 } } { 10 }\)
• B) \(\frac { \sqrt { 10 } } { 10 }\)
• C) \(- \sqrt { 10 }\)
• D) \(- \frac { \sqrt { 10 } } { 10 }\)

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