CUET Preparation Today
CUET
-- Mathematics - Section B1
Applications of Derivatives
The point which does not lie in the half plane $2x+3y -12 ≤ 0$ is :
(2, 1)
(2, 3)
(1, 2)
(3, 2)
The correct answer is Option (2) → (2, 3)
as at (2, 3)
$2x+3y-12≤0$
so $4+9-12≤0⇒1≤0$ (false)
⇒ (2, 3) doesn't lie in half plane