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How can we smoothen the following graph of sin (t) and cos (t) into a circle?

How can we smoothen the following graph of sin (t) and cos (t) into a circle? Correct Answer reduce the gap between linearly spaced elements of the dependent variable t

If we reduce the gap between the linearly spaced variables of t, the curvature of sin(t) would be clearly plotted by the plot command. Hence, the resultant curve would be a circle.

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