Question
Question: From point (2, 3) tangents are drawn to y<sup>2</sup> = 4x. If product of slopes of the tangents is ...
From point (2, 3) tangents are drawn to y2 = 4x. If product of slopes of the tangents is ‘a’ then value of | 6a | is
A
3
B
6
C
9
D
12
Answer
3
Explanation
Solution
Any tangent is y = mx + 1/m through (2, 3)
3 = 2m + 1/m