Q12Single correct3 Marks23 Feb 2025Which of the following relations is/are a one-one function?AR1={(x,y)∣x,y∈R, x+y>2}R_1 = \{(x, y) \mid x, y \in \mathbb{R},\; x + y > 2\}R1={(x,y)∣x,y∈R,x+y>2}BR2={(x,y)∣x,y∈R, x>y}R_2 = \{(x, y) \mid x, y \in \mathbb{R},\; x > y\}R2={(x,y)∣x,y∈R,x>y}CR3={(x,y)∣x,y∈R, x+y=12}R_3 = \{(x, y) \mid x, y \in \mathbb{R},\; x + y = 12\}R3={(x,y)∣x,y∈R,x+y=12}DR4={(x,y)∣x,y∈R, y=x2}R_4 = \{(x, y) \mid x, y \in \mathbb{R},\; y = x^2\}R4={(x,y)∣x,y∈R,y=x2}
