Respuesta :

Answer:

cos(t)

Step-by-step explanation:

[tex]=\frac{1+\cos(t)}{1+\frac{1}{\cos(t)}}\\\\[/tex]

[tex]=\frac{1+\cos(t)}{\frac{1+\cos(t)}{\cos(t)}}\\\\=\cos(t)[/tex]

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