If e is the eccentricity of the hyperbola `(x^(2))/(a^(2))-(y^(2))/(b^(2))=1` and `theta` is the angle between the asymptotes, then `cos.(theta)/(2)` is equal to

V'el'is the eccentricity of the hyperbola (x^(2))/(a^(2))-(y^(2))/(b^(2))=1 and theta is the angle between its asymptotes.The value of sin((theta)/(2)) is (A) (sqrt(e^(2)-1))/(sqrt(e^(2)-1))(C)sqrt((e^(2)+1)/(e^(2)-1))(D)sqrt((e^(2)-1)/(e^(2)+1))

If e is the eccentricity of (x^(2))/(a^(2))-(y^(2))/(b^(2))=1 and theta be the angle between its asymptotes,then cos((theta)/(2)) is equal to

If e is the eccentricity of (x^(2))/(a^(2))-(y^(2))/(b^(2))=1 & theta be the angle between the asymptotes, then sec theta//2 equals

The angle between the asymptotes of the hyperbola x^(2)-y^(2)=2 is

The angle between the asymptotes of the hyperbola (x^2)/(a^2)-(y^2)/(b^2)=1 is

The angle between the asymptotes of the hyperbola x^(2)//a^(2)-y^(2)//b^(2)=1 is

The angle between the asymptotes of the hyperbola x^(2)//a^(2)-y^(2)//b^(2)=1 is