What is the angle θ\thetaθ between the asymptotes of the hyperbola x21−y21=1\frac{x^2}{1} - \frac{y^2}{1} = 11x2−1y2=1?
45∘45^{\circ}45∘
90∘90^{\circ}90∘
60∘60^{\circ}60∘
30∘30^{\circ}30∘