I need help with part (ii) and (iii). The answer to part (iii) is 2/21.

c) [8 marks] 5(58: 9)) 80*", t) ' ii) Let P be the region of the twodimensional plane bounded by the inequali ties at 2 0, y 2 0 and + \\j S 1. Express the region P in terms of the new coordinates (7315). iii) Using the change of variables from (93? y) to (T, t), compute the integral K = f/P (x/El fdxdy. i) Let 21301\": t) : 7" cos4 t, 3/0", t) : TSlD4 t. Calculate the Jacobian det (