Evaluate the Trigonometric Function Using Its Period as an Aid $\sin \frac { 3 \pi } { 4 }$

question 165

Multiple Choice

Evaluate the trigonometric function using its period as an aid. $\sin \frac { 3 \pi } { 4 }$

• A) \(\sin \frac { 3 \pi } { 4 } = \infty\)
• B) \(\sin \frac { 3 \pi } { 4 } = - \sqrt { 2 }\)
• C) \(\sin \frac { 3 \pi } { 4 } = - \frac { \sqrt { 2 } } { 2 }\)
• D) \(\sin \frac { 3 \pi } { 4 } = \sqrt { 2 }\)
• E) \(\sin \frac { 3 \pi } { 4 } = \frac { \sqrt { 2 } } { 2 }\)

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