Question

calcular x :
cos(50-3x).sec(20+2x)=1​

Answer 1

Respuesta:

x = 6

Explicación paso a paso:

$\cos(50 - 3 \times ) \times \sec(20 + 2 \times ) = 1 \\ \cos(50 - 3 \times ) = \frac{1}{ \sec(20 + 2 \times ) } \\ \cos(50 - 3 \times ) = \cos(20 + 2 \times ) \\ 50 - 3 \times = 20 + 2 \times \\ - 3 \times - 2 \times = 20 - 50 \\ - 5 \times = - 30 \\ 5 \times = 30 \\ \times = \frac{30}{5} = 6 \\ \times = 6$