[tex]\begin{gathered} \text{ Remember that the an inequality can be inclusive or not inclusive. } \\ \text{Therefore when you have a "<" it means that is NOT inclusive. } \\ \text{But if you have "}\leq\text{" the inequality IS inclusive. } \\ \text{For example, when you say } \\ 0\leq x\leq5 \\ \text{that means 0,1,2,3,4,5} \\ \text{and if you say } \\ 0