1. 'Sine' function

→The curve of sine function passes through origin.

→This function makes a **sinusoidal wave** in the graph. So, it is a sinusoidal wave passing through center in the graph.

→The wave is continuous.

→The value of sin(x) is given by the interval [-1, 1]. So, the wave doesn't exceed 1 unit both above and below the x-axis.*(When x axis represents angle and y -axis represents )*__Graph__2. 'Cosine' function

→The curve of cosine function doesn't pass through origin.

→This function makes a sinusoidal wave in the graph. So, it is a sinusoidal wave which doesn't pass through center in the graph.

→The wave is continuous.

→The value of cos(x) ranges is given by interval [-1, 1]. So, the wave doesn't exceed 1 unit both above and below the x-axis.

3. 'Tangent' function

→The curve of cosine function doesn't pass through origin.

→The wave is discontinuous as it breaks after certain units as shown in graph below.

**Graph**

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