CUET Mathematics 2025 16 May Shift 1 PYQs

Let R be the relation over the set A of all straight lines in a plane such that $l_{1} \mathrm{R} l_{2} \Leftrightarrow l_{1}$ is parallel to $l_{2}$. Then R is :

Let $f: \mathbb{R} \to \mathbb{R}$ be defined as $f(x) = 100x + 1$, where $\mathbb{R}$ is a set of real numbers, then

The function $f: \mathbb{R} o \mathbb{R}, f(x) = |x|$ ($\mathbb{R}$ is the set of real numbers) is