please give me solution as soon as possible!

1. (i) [5 marks] Reparametrize the curve (t)_ 2 _1. 2t_ r _ 9+1 1+t1'+1J with respect to the arc length measured from the point (1, 0) in the direction of increasing t. (ii) [5 marks] Show that, for a plane curve the curvature is given by f'(t)9"(t) f\"(t)g'(t)l [ma + 9102]\" (iii) [2 marks] Hence, or otherwise, nd the curvature of the plane curve given H: in the question (i)