Question

M=Sen140° +Cos50°/cos130°​

Answer 1

Respuesta:

$M = \frac{5 - \sqrt{61} }{ \sqrt{61} }$

Explicación paso a paso:

$M = sen140° + \frac{cos50°}{cos130°}$

$M = sen(180° - 40°) + \frac{cos50°}{cos(180° - 50°)}$

$M = sen40° - \frac{cos50°}{cos50°}$

$M = sen40° - 1$

$M = \frac{5}{ \sqrt{61} } - 1$

$M = \frac{5 - \sqrt{61} }{ \sqrt{61} }$