Respuesta:
3(senx/cosx)+(cosx/senx)+(1/cosx)=((3sen^2x)+(cos^2x)+senx)/(senx*cosx)=(2sen^2x+sen^2x+cos^2x+senx)/(senx*cosx)=(2sen^2x+senx+1)/(senx*cosx)
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Respuesta:
3(senx/cosx)+(cosx/senx)+(1/cosx)=((3sen^2x)+(cos^2x)+senx)/(senx*cosx)=(2sen^2x+sen^2x+cos^2x+senx)/(senx*cosx)=(2sen^2x+senx+1)/(senx*cosx)