Final answer:
When solving an inequality, if you multiply or divide by a negative number, the inequality sign must be reversed. This is a true statement in mathematics.
Step-by-step explanation:
The question concerns a concept in mathematics related to solving inequalities. When solving a linear inequality, if you multiply or divide both sides of the inequality by a negative number, you must reverse the sense of the inequality. This is because multiplying or dividing by a negative number changes the direction of the inequality. For example, if we have -T \(\times\) A > 0, and we divide both sides by -T, we must reverse the inequality to A < 0 to preserve the true statement. The statement that the sense of the inequality must be reversed when the coefficient is negative is true.