10:15 Safari Expert Q&A Done 5. Calculate the double integral using vertical cross- sections and then using horizontal cross-sections: SR (xvy - yvx) dA, where R is the region bounded by the lines: y = -2x + 4, y = 2x and x = 0. 5. Calculate the double integral using vertical cross-sections and then using horizontal cross-sections: SIR (xy - yvx) dA, where R is the region bounded by the lines: y = -2x + 4, y = 2x and x = 0