This circle has the centre at the origin and a radius of 1 unit. The point P can move around the circumference of the circle. At point P the \(x\)-coordinate is \(\cos{\theta}\) and the ...

Plot tan, cot, sec and csc on the interval [-2Pi, 2Pi]. (Note that these functions all have vertical asymptotes.) You should know these graphs well. The trigonometeric functions are all periodic, that ...

Move the point T along the graph of y=sin(x) by moving the slider. The slope function (derivative) is then traced out in blue. Can you identify the graph of the derivative? This is a Java Applet ...

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 ...

Measuring the amplitude, phase, and impedance responses of electronic, electro-acoustic, and other systems, the 10-Hz to 4-MHz C60 impedance and frequency response analyzer displays results using a ...

Ozzy Osbourne’s cause of death revealed after rock legend’s funeral Texas Dems to DC: “Do something — or get out of the way” Out of nowhere, Teslas are suddenly clogging a Calif. neighborhood, locals ...