Set up the double integral ∬df(x,y)da, where f(x,y)=3x⁵−2x and d is the triangle with vertices (-1, 0), (0, 2), and (3, 0), considering d as a region of type ii.
a) ∬(3x⁵ −2x)dxdy over the region d
b) ∬(3x⁵ −2x)dydx over the region d
c) ∬(3x⁵ −2x)dyda over the region d
d) None of the above