how can i solve with this question?

i need full explanation to help my understand.

Let P be the point described by Archimedes, 0 = [0,0] and 9 be the angle between OP and the positive x -axis. According to Archimedes the line OP revolves at a uniform rate. Suppose for example that this late is 4 : Initially, P is on the x axis. So we can integrate this expression to nd 9=ee. We are also told by Archimedes that the distance r = |0P| moves at a uniform rate. Suppose for example that this rate is 20 : dr_ 520 r= la. Hence we have a parametric description of the point P in terms of time t. We can eliminate t to nd an expression in terms of r and 0 alone. This expression is called the polar form: \"Ea-- Initially, r = 3 . So we can integrate this expression to nd: Note: the Maple syntax for 6 is theta