I need help on these 4 math problems:

Let x0} = '5" 605001}, EU] 2 9' sin (41]. Find %. Assume % 7E {)_ (Express numbers in exact form. Use symbolic notation and fractions where needed.) Find an equation of the tangent line to the curve x(1) = 13t, y(t) = 12/2 - 1 at to = 1 (Express numbers in exact form. Use symbolic notation and fractions where needed.) y(x) =Find an equation of the tangent line to the curve x(t) = e', y(t) = e-' att = 4 (Express numbers in exact form. Use symbolic notation and fractions where needed.) y(x) =Find an equation of the tangent line to the curve x(t) = e", y(t) = e' att = 0 (Express numbers in exact form. Use symbolic notation and fractions where needed.) Y(x) =