Question

Ayúdenme por favor. Solo me quedan 35 minutos!

Answer 1

Recuerda:

$\sin {}^{2} (x) + \cos {}^{2} (x) = 1$

$\sec(x) = \frac{1}{ \cos(x) }$

$\csc(x) = \frac{1}{ \sin(x) }$

...

$\frac{1}{ \cos {}^{2} (o) } + \frac{1}{ \sin {}^{2} (o) } = \sec {}^{2} (o) \csc {}^{2} (o)$

$\frac{ \sin {}^{2} (o) + \cos {}^{2} (o) }{ \sin {}^{2} (o) \cos {}^{2} (o) } = \sec {}^{2} (o) \csc {}^{2} (o)$

$\frac{1}{ \cos {}^{2} (o) \sin {}^{2} (o) } = \sec {}^{2} (o) \csc {}^{2} (o)$

$\sec {}^{2} (o) \csc {}^{2} (o) = \sec(o) {}^{2} \csc {}^{2} (o)$

$1 = 1$

La igualdad es verdadera