Use the value of the trigonometric function to find $\sin ( t + \pi )$ . $\sin t = \frac { 7 } { 8 }$
A) $\sin ( t + \pi ) = - \frac { 8 } { 7 }$
B) $\sin ( t + \pi ) = \frac { 8 } { 7 }$
C) $\sin ( t + \pi ) = \frac { 7 } { 8 }$
D) $\sin ( t + \pi ) = \infty$
E) $\sin ( t + \pi ) = - \frac { 7 } { 8 }$

Question

Use the value of the trigonometric function to find $\sin ( t + \pi )$ .   $\sin t = \frac { 7 } { 8 }$  
A) $\sin ( t + \pi ) = - \frac { 8 } { 7 }$
B) $\sin ( t + \pi ) = \frac { 8 } { 7 }$
C) $\sin ( t + \pi ) = \frac { 7 } { 8 }$
D) $\sin ( t + \pi ) = \infty$
E) $\sin ( t + \pi ) = - \frac { 7 } { 8 }$

Quizplus · Accepted Answer

Using the trigonometric identity $\sin (t + \pi) = -\sin t$, if $\sin t = \frac{7}{8}$, then $\sin (t + \pi) = -\frac{7}{8}$.

Use the Value of the Trigonometric Function to Find sin⁡(t+π)\sin ( t + \pi )sin(t+π)

Use the Value of the Trigonometric Function to Find $\sin ( t + \pi )$