2 sin 30-3cos ² 45+ tan60
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Step-by-step explanation:
2 sin30° - 3 cos² 45° + tan 60°
2 (1/2) - 3 (1/√2)² + √3
1 - 3(1/2) + √3
1 - (3/2) + √3
[2 - 3 + 2√3] / 2
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