👉 Learn how to graph a cosine function. To graph a cosine function, we first determine the amplitude (the maximum point on ...

👉 Learn how to graph a tangent function. To graph a tangent function, we first determine the period (the distance/time for a ...

Excel has built-in functions for sine and cosine, the two core trigonometric functions, and for hyperbolic sine and hyperbolic cosine, their hyperbolic counterparts. It also has built-in functions for ...

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 ...