Question

7. Calcule x si:
tan(6x = 20). cot(4x + 120) =
tan(6x-20). cot(4x + 12°
3)
1​

Answer 1

RESOLUCIÓN:

$tan(6x - 2) \times cot( \frac{4x}{3} + 12) = 1 \\ 6x - 2 = \frac{4x}{3} + 12 \\ 6x - \frac{4x}{3} = 12 + 2 \\ \frac{14x}{3} = 14 \\ 14x = 14 \times 3 \\ 14x = 42 \\ x = \frac{42}{14} \\ x = 3$

RESPUESTA:

X = 3