Question

$Demostrar \frac{sen2x+2cos^{2} x}{1-sen^{2}x } -2=2tanx$

Answer 1

Respuesta:

$\frac{sen2x+2cos^{2}x }{1-sen^{2}x }-2=2tanx\\ \\\frac{2.senx.cosx+2cos^{2}x }{cos^{2}x }-2=2tanx \\\\\frac{2senx.cosx}{cos^{2}x } +\frac{2cos^{2}x}{cos^{2}x } -2=2tanx\\\\\frac{2senx}{cosx }+2-2=2tanx\\\\2tanx=2tanx$

Explicación paso a paso: