Ayuda porfavor
Si: senx + cosx=√5/2
calcule: E =4senxcosx
Si: senx + cosx=√5/2
calcule: E =4senxcosx
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Respuesta:
1/2
Explicación paso a paso:
senx+cosx=√5/2
lo elevamos al cuadrado
(sen+cos)²=(√5/2)²
(sen²+cos²)+2.sen.cos=5/4
1+2sen.cos=5/4
2sen/cos=5/4-1
2sen.cos=1/4
sen.cos=1/4.1/2
sen.cos=1/8
4.sen.cos
4.1/8
1/2