Question

Subtangent is theprojectionon to the x- axis of that part of atangentlying between its point of tangency with the curve and itsintersectionwith the x-axis.

• A. True
• B. False

Answer 1

The correct option is A

True

Here is definition of the subtangent. It is theprojectionon to the x- axis of that part of atangentlying between its point of tangency with the curve and itsintersectionwith the x-axis.

In the above given parabola, TD is the subtangent of the parabola $y^2=4ax.$