Find the Exact Value of the Given Expression $\cos \left( 300 ^ { \circ } + 135 ^ { \circ } \right)$

question 32

Multiple Choice

Find the exact value of the given expression.​ $\cos \left( 300 ^ { \circ } + 135 ^ { \circ } \right)$

• A) \(\frac { 1 - \sqrt { 3 } } { 2 \sqrt { 2 } }\)
• B) \(\frac { 1 + \sqrt { 3 } } { 2 \sqrt { 2 } }\)
• C) \(\frac { - 1 - \sqrt { 3 } } { 2 \sqrt { 2 } }\)
• D) \(\frac { - 1 + \sqrt { 3 } } { 2 \sqrt { 2 } }\)

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