(1) Prove that s 5x+ = tan4x [6 marks] MTN8 - Wafa Wafa f O! 46 11 46% 18:06 TOTAL [37 marks] Question 3 1. Find the slope of the parabola y = e-ocosAr at the point N(4, 6). Write an equation for the tangent to the parabola at this point. [5 marks] 2. Find the limits of the following: (i) 1 - cos-2x lim [4 marks] (ii) lim 3 tan 3t - 2sint t-+0 [4 marks] (iii) sin (x - 1) lim rix'+x-2 [4 marks] (3) Determine whether or not the function is continuous at the indicated points if x