3.3 Graphs and Periodicity

Amplitude: $A = 2$ . Range is $[-2, 2]$ .
Frequency: $B = 2$ .
Period: $T = \frac{2\pi}{B} = \frac{2\pi}{2} = \pi$ .
Sketch: One full wave completes between $0$ and $\pi$ . Peaks at $\pi/4$ (value 2), Zero at $\pi/2$ , Trough at $3\pi/4$ (value -2).

Operation

Angle

Unit

Standard Values:

sin 0 = 0, sin 30 = 0.5, sin 45 = 0.707, sin 60 = 0.866, sin 90 = 1

cos 0 = 1, cos 30 = 0.866, cos 45 = 0.707, cos 60 = 0.5, cos 90 = 0

Select an operation and enter values.