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 ...

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 ...

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 ...