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Find the equation of the tangent line to this parametric curve at the given value of the
parameter. Take the derivative by dividing the derivative of y with respect to t by the
derivative of x with respect to t. Plug in the given value of the parameter. This is
the slope m of the equation of the tangent line. Find x at the given value of the parameter,
then find y at the given value of the parameter. Plug the values for x, y and the slope into
the equation of the tangent. Simplify as much as possible to find the equation of the tangent
line.