CBSE Class 11-science Answered
why trigonometric functions also called as circular functions??
Asked by | 09 Jun, 2013, 01:03: PM
Expert Answer
Trigonometric functions are sometimes called circular functions. This is because the two fundamental trigonometric functions the sine and the cosine are defined as the coordinates of a point P travelling around on the unit circle of radius 1 .
As P moves around the circle of radius 1, the input variable the angle q changes. The outputs cos(q) and sin(q) give the x and y coordinates of P, respectively.
Answered by | 09 Jun, 2013, 07:46: PM
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