Respuesta:
2.846
Explicación
Tan² 60°=3
Sec 30°=1.154
cos²45°=0.5
3-1.154+2(0.5)=2.846
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Respuesta:
2.846
Explicación
Tan² 60°=3
Sec 30°=1.154
cos²45°=0.5
3-1.154+2(0.5)=2.846