Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 4 | A Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
Please help! (":
Date Posted: 2 years ago
Views: 398
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Recall that the value of dy/dx at a certain point represents the gradient of the TANGENT (not the gradient of the normal) to the curve at that point.
That said, recall that the normal to a curve is a line perpendicular to the tangent to the same curve at the tangential point.
For two perpendicular lines, the product of their gradients must equal to -1 (except for horizontal and vertical lines, though this side scenario is too easy to humans - horizontal lines and vertical lines are always perpendicular!).
That said, recall that the normal to a curve is a line perpendicular to the tangent to the same curve at the tangential point.
For two perpendicular lines, the product of their gradients must equal to -1 (except for horizontal and vertical lines, though this side scenario is too easy to humans - horizontal lines and vertical lines are always perpendicular!).
Date Posted:
2 years ago
360 Tutoring Program