Exploring Trigonometry
Imagine you are new to math functions such as sine and cosine. To understand how they behave, you need to see them plotted. Most textbooks will show a sine and cosine curve (or many) but they cannot show you any variant on the standard trig formula that you can think of.
Try This Activity:-
Click on y=sinx and then click on the graph button.
Then click on y=cosx and click the Over button. See how easy it is to compare two equations.
Then..
Click on y=2sinx followed by the Graph button.
Now click on y=sin2x followed by the Over button.
A more complicated example..
The textbook says that 8sinx(cosx)³-4sinxcosx    is the same as sin4x . Is it?
To test if it is true, click on one and Graph it, then click on the other and Over(lay) it.