Final answer:
To sketch the curve represented by the given pair of parametric equations x = cos(t) and y = cos(2t), substitute different values of t and plot the corresponding points on a graph.
Step-by-step explanation:
The given pair of parametric equations are x = cos(t) and y = cos(2t).
To sketch the curve represented by these parametric equations, we can plot points by substituting different values of t.
For example, when t = 0, the values of x and y are x = cos(0) = 1 and y = cos(2 * 0) = cos(0) = 1.
We can continue substituting different values of t and plotting the corresponding points on a graph to sketch the curve.