Question

RAZONES TRIGONOMÉTRICAS DE ÁNGULOS solución del problema

Answer 1

Respuesta:

C) 2

Explicación paso a paso:

Secθ = (2X - 1)/2X

Tgθ = (X - 1)/2X

E = Secθ + Tgθ

E = (2X - 1)/2X+ (X - 1)/2X

E = [(2X - 1) + (X - 1)]/2X

E = [2X - 1 + X - 1]/2X

E = [3X - 2]/2X

$(2X)^{2} +(X-1)^{2} =(2X-1)^{2} \\4X^{2}+X^{2}-2X+1=4X^{2}-4X+1\\4X^{2}+X^{2}-4X^{2}-2X+4X=+1-1\\X^{2}+2X=0\\X^{2}=-2X\\X=-2$

E = [3X - 2]/2X

E = [3(-2) - 2]/2(-2)

E = [  -6 - 2]/-4

E = -8/-4

E = 2