Presentation on theme: " Describe the transformations that change y = cosx into… y = cos (x-30) y = 3cosx y = -cosx."— Presentation transcript:
Describe the transformations that change y = cosx into… y = cos (x-30) y = 3cosx y = -cosx
Aims: To become familiar with the sine, cosine and tangent functions.
Name: To know the sine, cosine and tangent functions. Describe: The where the sine, cosine and tangent functions come from and sketch their graphs. Apply transformations to these functions and start to use a graphical calculator to draw them.
P225 Ex 1A Q2,3 + Revision of C2/C1 Next Lesson: More Trig Graphs and Functions Hipparchus – Greek Mathematician (Born in Modern Day Turkey) Discovered the basis of trigonometry c140BC but is more famous for his works in astronomy.
Visual Demonstrations of sine and cosine from the unit circle. hp?id=33 hp?id=33
The same transformation rules we have seen so far can be applied to these graphs. You must be aware of how these graphs influence key elements/ properties. E.g.
Using the transparencies match the functions to the graphs.