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Tangent and Cotangent Functions

Main definitions and formulas:

• The amplitude of a sine wave is the vertical distance from the middle of the waves to the peaks (or from the middle to the valleys). In the equations above, it is given by | A| .
• The period of a sine wave is the horizontal distance for the wave to do one complete cycle from one peak to the next peak. In the equations above, it is given by (2π/B).
• The phase shift of a sine wave is the horizontal distance the wave is shifted from the traditional starting position. In the equations above, it is given by − (C/B).
• The vertical shift of a sine wave is the vertical distance that the middle of the wave is shifted from the x-axis. In the equations above, it is given by D.