TMUA-P2-PRF2-001 — Paper P2 · Proof by cases · Level 1

Options

1. A
   $x \ge 0$ and $x > 0$.
2. B
   $x$ even and $x$ odd.
3. C
   $x > 1$ and $x < -1$.
4. D
   $x \ge 0$ and $x < 0$.
5. E
   $x > 0$ and $x < 0$.

Letters only — the answer key is hidden. Work it out, then check the solution below.

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