CircleHard
Question
If θ is the angle between the asymptotes of the hyperbola 
= 1 with eccentricity e, then sec 
can be -
= 1 with eccentricity e, then sec can be - Options
A.e
B.e/2
C.e/3
D.
Solution
tan 
⇒ e2 - 1 = tan2 
⇒ sec 
= e
or e2 - 1 = cot2
⇒ cosec 
= e
⇒ sec
= 
⇒ e2 - 1 = tan2 ⇒ sec = eor e2 - 1 = cot2
⇒ cosec = e⇒ sec
= Create a free account to view solution
View Solution FreeMore Circle Questions
An ellipse is drawn with major and minor axes of lengths 10 and 8 respectively. Using one focus as centre, a circle is d...The equation of the circle passing through the point (1, 1) and through the point of intersection of circles x2 + y2 + 1...Two parabolas have the same focus. If their directrices are the x-axis & the y-axis respectively, then the slope of thei...Two lines through (2, 3) from which the circle x2 + y2 = 25 intercepts chords of length 8 units have equations...If a circle with centre (0, 0) touches the line 5x + 12y = 1 then its equation will be-...