Find the Exact Value Under the Given Conditions Find $\sin ( \alpha + \beta ) .$

question 40

Multiple Choice

Find the exact value under the given conditions.
- $\tan \alpha = \frac { 5 } { 12 } , \pi < \alpha < \frac { 3 \pi } { 2 } ; \quad \cos \beta = - \frac { 4 } { 5 } , \frac { \pi } { 2 } < \beta < \pi \quad$ Find $\sin ( \alpha + \beta ) .$

• A) \(\frac { 63 } { 65 }\)
• B) \(\frac { 33 } { 65 }\)
• C) \(- \frac { 16 } { 65 }\)
• D) \(\frac { 56 } { 65 }\)

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Elements or conditions that can be changed and manipulated within an experiment to test their effects on the outcomes.

Control Variable

A variable that is kept constant during an experimental test to ensure that any changes observed in the outcome can be attributed to the variable being tested.

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