Question

ayuda porfavor .....

Answer 1

Respuesta:

$s=cos\frac{}{}x$

Explicación paso a paso:

$s=(sec\frac{}{}x+tan\frac{}{}x)(1-sen\frac{}{}x)\\\\s=(\frac{1}{cos\frac{}{}x} +\frac{sen\frac{}{}x}{cos\frac{}{}x} )(1-sen\frac{}{}x)\\\\s=(\frac{1+sen\frac{}{}x}{cos\frac{}{}x})(1-sen\frac{}{}x)\\\\s=\frac{(1+sen\frac{}{}x)(1-sen\frac{}{}x)}{cos\frac{}{}x}\\\\s=\frac{1^2-sen^2\frac{}{}x}{cos \frac{}{}x}\\\\s=\frac{cos^2\frac{}{}x}{cos\frac{}{}x}\\\\s=cos\frac{}{}x$