Solved

Evaluate
- cos⁡2315∘−sin⁡2270∘+4tan⁡230∘\cos ^ { 2 } 315 ^ { \circ } - \sin ^ { 2 } 270 ^ { \circ } + 4 \tan ^ { 2 } 30 ^ { \circ }

Question 174

Multiple Choice

Evaluate.
- cos⁡2315∘−sin⁡2270∘+4tan⁡230∘\cos ^ { 2 } 315 ^ { \circ } - \sin ^ { 2 } 270 ^ { \circ } + 4 \tan ^ { 2 } 30 ^ { \circ }


A) 176\frac { 17 } { 6 }
B) 116\frac { 11 } { 6 }
C) 56\frac { 5 } { 6 }
D) −16- \frac { 1 } { 6 }

Correct Answer:

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