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The differential of the sine function is the cosine function while the differential of the cosine function is the negative of the sine function.
The cosine function is mathematical equation to determine the adjacent angle of a triangle. The cosine of an angle is the ratio of the length of the hypotenuse: so called because it is the sine of the co-angle.
Tangent = sine/cosine provided that cosine is non-zero. When cosine is 0, then tangent is undefined.
Yes. Along with the tangent function, sine is an odd function. Cosine, however, is an even function.
The ratio of sine and cosine.