TMUA-P2-ERR2-003 — Paper P2 · Common fallacies · Level 1

Options

1. A
   $\sqrt{9} \ne 3$.
2. B
   $\sqrt{16} \ne 4$.
3. C
   The error is that $9 + 16 \ne 25$.
4. D
   Nothing is wrong; roots distribute over addition.
5. E
   $\sqrt{9 + 16} = \sqrt{25} = 5 \ne 7$: the square root does not split over a sum.

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

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