Evaluate: sin230 – 3cos245 + tan260.
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Answer: 5/2 is the answer
Step-by-step explanation:
= sin²30-3cos²45+tan²60
= (1/2)²-3(1/√2)²+(√3)²
= (1/4)- 3×1/2+3
= 1/4-3/4+3
= 5/2
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