Loading…
Loading…
Spec: ERR2 · No calculator · ~150s
Letters only — the answer key is hidden. Work it out, then check the solution below.
No written hint yet — check the trope: converse-vs-contrapositive. Name the trap first, work the stem by hand, then open the solution below.
Same topic · same level
TMUA-P2-ERR2-001
A student argues: “If ab = ac then b = c, just divide both sides by a.” For which values does this implication fail, and…
Common fallacies
Same trap: converse-vs-contrapositive
TMUA-P2-ARG1-001
Let P and Q be mathematical statements. The converse of the statement “If P then Q ” is which of the following?
Statements and connectives
Step up a level
TMUA-P2-ERR2-004
A student solves -2x > 6 by dividing both sides by -2 to get x > -3. What is the error?
Common fallacies