Back to Periodic and Sinusoidal Functions
The tangent function and its graph
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Learn it y = tan x has period 180° (π), zeros at 0°, 180°, 360°…, and vertical asymptotes where cos x = 0: x = 90°, 270°… For y = tan(kx), the period is 180°/|k|.
Example: Period of y = tan(3x)?
- 180° ÷ 3 = 60°.
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