Many students think they've solved a trig equation when they get one answer (one size of angle \(x^\circ\)). However there's often more than one answer expected so be aware of this. Let's remind ...

Graphing calculators: essential tools for math education or low-res Game Boys? The debate rages on. Advocates of non-mathematical applications for the devices have scored a major victory with the ...

Let's remind ourselves of what the sine graph looks like so that we can see how many solutions we should be expecting: Therefore, from the graph of the function, we can see that we should be expecting ...