The orthocentre of a triangle formed by three tangents to a parabola y2 = 8x lies on
(a) x + 1 = 0
(b) x + 2 = 0
(c) x + = 0
(d) x – 1 = 0
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
The orthocentre of a triangle formed by three tangents to a parabola y2 = 8x lies on
(a) x + 1 = 0
(b) x + 2 = 0
(c) x + = 0
(d) x – 1 = 0
The orthocentre of a triangle formed by three tangents to a parabola y2 = 8x lies on
(a) x + 1 = 0
(b) x + 2 = 0
(c) x + = 0
(d) x – 1 = 0
Correct option (B) x + 2 = 0
Explanation :
Orthocentre of a triangle formed by three tangents to the parabola y2 = 4ax lies on the directrix x + a = 0 (see Problem 4 in the section ‘Subjective Problems’). Here, a = 2 gives that the orthocentre lies on the line x = 2 = 0.