Use the Value of the Trigonometric Function to Find $\cos ( - t )$

question 17

Multiple Choice

Use the value of the trigonometric function to find $\cos ( - t )$ .​ $\cos t = - \frac { 3 } { 8 }$ ​

• A) \(\cos ( - t ) = \frac { 8 } { 3 }\)
• B) \(\cos ( - t ) = \frac { 3 } { 8 }\)
• C) \(\cos ( - t ) = - \frac { 3 } { 8 }\)
• D) \(\cos ( - t ) = - \frac { 8 } { 3 }\)
• E) \(\cos ( - t ) = \infty\)

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