Respuesta:
4
Explicación paso a paso:
Sabemos que:
Cos(45°)= √2/2
Ctg(30°)= √3
Sen(60°)= √3/2
Entonces:
A=3cos²45°/2ctg²30°+5sen²60°
A=3(√2/2)²/2(√3)²+5(√3/2)²
A=3/2 ÷ 2(3) + 15/4
A=1/4+15/4
A= 16/4
A=4
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Verified answer
Respuesta:
4
Explicación paso a paso:
Sabemos que:
Cos(45°)= √2/2
Ctg(30°)= √3
Sen(60°)= √3/2
Entonces:
A=3cos²45°/2ctg²30°+5sen²60°
A=3(√2/2)²/2(√3)²+5(√3/2)²
A=3/2 ÷ 2(3) + 15/4
A=1/4+15/4
A= 16/4
A=4