1. [-16.66 Points] DETAILS SCALCETQ 10.2.007. MY NOTES ASK YOUR TEACHER Find an equation of the tangent to the curve at the point corresponding to the given value of the parameter. x=t9+1, y=r1+r; r=-1 : Need Help? .3112. y: 2. [-16.66 Points] DETAILS SCALCET9 10.2.017. MY NOTES ASK YOUR TEACHER 2 Find 3 and . 6')! dXZ For which values of t is the curve concave upward? (Enter your answer using interval notation.) i: Need Help? _' 3. [16.68 Points] DETAILS SCALCETB 10.XP.2.032. MY NOTES ASK YOUR TEACHER Consider the parametric equations below. . 2 . 77 x = sm (1:), y = sm[4t), 0 5 t s I Set up an integral that represents the area of the surface obtained by rotating the given curve about the x-axis. [HIS )dt Use your calculator to find the surface area correct to four decimal places. [ Need Help