Changes

are true statements.

are true statements.

The inequalities are widely used in more advanced mathematics for example the [[cosine function]] is always between -1 and 1 inclusive so you can write;

The inequalities are widely used in more advanced mathematics for example the [[cosine function]] is always between -1 and 1 inclusive so you can write:

<math>-1\leq\cos x\leq1\; \forall x\in\mathbb{R}</math>.

<math>-1\leq\cos x\leq1\; \forall x\in\mathbb{R}</math>.

This gives the function [[bounds]].

This gives the function's [[bounds]]. '<math>\forall x\in\mathbb{R}</math>' means that the preceding inequality is true for all [[Real numbers|real]] values of <math>x</math>.  

==See also==

==See also==

*[[Equation]]

*[[Equation]]

[[Category:mathematics]]

[[Category:mathematics]]