Question

Doy 20 puntos porfavor es urgente

Answer 1

${ \frac{secx-1}{secx+1}}\\\\{ \frac{\frac{1}{cosx}-1}{\frac{1}{cosx}+1}} \\\\{ \frac{\frac{1-cosx}{cosx}}{\frac{1+cosx}{cosx}} }\\\\{ \frac{1-cosx}{cosx} \times \frac{cosx}{1+cosx}} \\\\{\text{simplifico los cosx}}\\\\{ \frac{1-cosx}{1+cosx}} \\\\{\text{salu2.!! :)}}$