Question
Mathematics Question on Tangents and Normals
The points on the curve 9x2+16y2=1 at which the tangents are parallel to x-axis:
A
(0,4), (0,-4)
B
(0, 0), (0,-4)
C
(4, 0), (-4, 0)
D
(0, 0), (0, 4)
Answer
(0,4), (0,-4)
Explanation
Solution
The correct option is (A): (0,4), (0,-4)