Consider the curve O which is the triangle with vertices (3, 0, 0) , (0, 3, 0) , and (0, 0, -3) with downward orientation. Also consider the vector field F (x, y, 2) = (3x2 + 4y, x + 2', y + ') and do the following: . ParametrizationHint: This will require more than one parametrization. . Calculate the line integral ( F . dr . If you use any theorems state which theorems very clearly and also include justification on how they are appropriate. DO NOT USE FORMULA [10] ON PAGE 1130. THERE WILL BE A MAJOR DEDUCTION FOR THAT