Anahisv23
Anahisv23
17-06-2017
Mathematics
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Respuesta :
mathmate
mathmate
25-06-2017
From symmetry of sin(x) about pi/2, we know that sin(x)=sin(pi-x).
Therefore
sin(x)+sin(pi-x)=sin(x)+sin(x)=2sin(x).
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